diff --git a/test/metaquot/test.ml b/test/metaquot/test.ml
index 026e8dc2e..bf31f6449 100644
--- a/test/metaquot/test.ml
+++ b/test/metaquot/test.ml
@@ -2,9 +2,9 @@ let loc = Ppxlib.Location.none
 [%%expect{|
 val loc : Warnings.loc =
   {Ppxlib.Location.loc_start =
-    {Lexing.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0; pos_cnum = -1};
+    {Lexing.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0; pos_cnum = -1};
    loc_end =
-    {Lexing.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0; pos_cnum = -1};
+    {Lexing.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0; pos_cnum = -1};
    loc_ghost = true}
 |}]
 
@@ -18,19 +18,19 @@ let _ = [%expr ()]
    ({Ppxlib_ast.Ast.txt = Ppxlib_ast.Ast.Lident "()";
      loc =
       {Ppxlib_ast.Ast.loc_start =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_end =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_ghost = true}},
    None);
  pexp_loc =
   {Ppxlib_ast.Ast.loc_start =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_end =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_ghost = true};
  pexp_loc_stack = []; pexp_attributes = []}
@@ -44,19 +44,19 @@ let _ = [%pat? ()]
    ({Ppxlib_ast.Ast.txt = Ppxlib_ast.Ast.Lident "()";
      loc =
       {Ppxlib_ast.Ast.loc_start =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_end =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_ghost = true}},
    None);
  ppat_loc =
   {Ppxlib_ast.Ast.loc_start =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_end =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_ghost = true};
  ppat_loc_stack = []; ppat_attributes = []}
@@ -70,19 +70,19 @@ let _ = [%type: unit]
    ({Ppxlib_ast.Ast.txt = Ppxlib_ast.Ast.Lident "unit";
      loc =
       {Ppxlib_ast.Ast.loc_start =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_end =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_ghost = true}},
    []);
  ptyp_loc =
   {Ppxlib_ast.Ast.loc_start =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_end =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_ghost = true};
  ptyp_loc_stack = []; ptyp_attributes = []}
@@ -97,10 +97,10 @@ let _ = [%stri let _ = ()]
       {Ppxlib_ast.Ast.ppat_desc = Ppxlib_ast.Ast.Ppat_any;
        ppat_loc =
         {Ppxlib_ast.Ast.loc_start =
-          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_end =
-          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_ghost = true};
        ppat_loc_stack = []; ppat_attributes = []};
@@ -110,37 +110,37 @@ let _ = [%stri let _ = ()]
          ({Ppxlib_ast.Ast.txt = Ppxlib_ast.Ast.Lident "()";
            loc =
             {Ppxlib_ast.Ast.loc_start =
-              {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1;
+              {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0;
                pos_bol = 0; pos_cnum = -1};
              loc_end =
-              {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1;
+              {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0;
                pos_bol = 0; pos_cnum = -1};
              loc_ghost = true}},
          None);
        pexp_loc =
         {Ppxlib_ast.Ast.loc_start =
-          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_end =
-          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_ghost = true};
        pexp_loc_stack = []; pexp_attributes = []};
      pvb_attributes = [];
      pvb_loc =
       {Ppxlib_ast.Ast.loc_start =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_end =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_ghost = true}}]);
  pstr_loc =
   {Ppxlib_ast.Ast.loc_start =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_end =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_ghost = true}}
 |}]
@@ -156,36 +156,36 @@ let _ = [%sigi: include S]
         {Ppxlib_ast.Ast.txt = Ppxlib_ast.Ast.Lident "S";
          loc =
           {Ppxlib_ast.Ast.loc_start =
-            {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_end =
-            {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_ghost = true}};
       pmty_loc =
        {Ppxlib_ast.Ast.loc_start =
-         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_end =
-         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_ghost = true};
       pmty_attributes = []};
     pincl_loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true};
     pincl_attributes = []};
  psig_loc =
   {Ppxlib_ast.Ast.loc_start =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_end =
-    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+    {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
      pos_cnum = -1};
    loc_ghost = true}}
 |}]
@@ -199,10 +199,10 @@ let _ = [%str let _ = ()]
        {Ppxlib_ast.Ast.ppat_desc = Ppxlib_ast.Ast.Ppat_any;
         ppat_loc =
          {Ppxlib_ast.Ast.loc_start =
-           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
             pos_cnum = -1};
           loc_end =
-           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
             pos_cnum = -1};
           loc_ghost = true};
         ppat_loc_stack = []; ppat_attributes = []};
@@ -212,37 +212,37 @@ let _ = [%str let _ = ()]
           ({Ppxlib_ast.Ast.txt = Ppxlib_ast.Ast.Lident "()";
             loc =
              {Ppxlib_ast.Ast.loc_start =
-               {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true}},
           None);
         pexp_loc =
          {Ppxlib_ast.Ast.loc_start =
-           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
             pos_cnum = -1};
           loc_end =
-           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+           {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
             pos_cnum = -1};
           loc_ghost = true};
         pexp_loc_stack = []; pexp_attributes = []};
       pvb_attributes = [];
       pvb_loc =
        {Ppxlib_ast.Ast.loc_start =
-         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_end =
-         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_ghost = true}}]);
   pstr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}}]
 |}]
@@ -258,36 +258,36 @@ let _ = [%sig: include S]
          {Ppxlib_ast.Ast.txt = Ppxlib_ast.Ast.Lident "S";
           loc =
            {Ppxlib_ast.Ast.loc_start =
-             {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+             {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
               pos_cnum = -1};
             loc_end =
-             {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+             {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
               pos_cnum = -1};
             loc_ghost = true}};
        pmty_loc =
         {Ppxlib_ast.Ast.loc_start =
-          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_end =
-          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_ghost = true};
        pmty_attributes = []};
      pincl_loc =
       {Ppxlib_ast.Ast.loc_start =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_end =
-        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+        {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
          pos_cnum = -1};
        loc_ghost = true};
      pincl_attributes = []};
   psig_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}}]
 |}]
@@ -303,38 +303,38 @@ let _ =
    {Ppxlib_ast.Ast.txt = "attr1";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}};
  {Ppxlib_ast.Ast.attr_name =
    {Ppxlib_ast.Ast.txt = "attr2";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}}]
 |}]
@@ -348,38 +348,38 @@ let _ =
    {Ppxlib_ast.Ast.txt = "attr1";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}};
  {Ppxlib_ast.Ast.attr_name =
    {Ppxlib_ast.Ast.txt = "attr2";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}}]
 |}]
@@ -393,38 +393,38 @@ let _ =
    {Ppxlib_ast.Ast.txt = "attr1";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}};
  {Ppxlib_ast.Ast.attr_name =
    {Ppxlib_ast.Ast.txt = "attr2";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}}]
 |}]
@@ -443,38 +443,38 @@ let _ =
    {Ppxlib_ast.Ast.txt = "attr1";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}};
  {Ppxlib_ast.Ast.attr_name =
    {Ppxlib_ast.Ast.txt = "attr2";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}}]
 |}]
@@ -493,38 +493,38 @@ let _ =
    {Ppxlib_ast.Ast.txt = "attr1";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}};
  {Ppxlib_ast.Ast.attr_name =
    {Ppxlib_ast.Ast.txt = "attr2";
     loc =
      {Ppxlib_ast.Ast.loc_start =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_end =
-       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+       {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
         pos_cnum = -1};
       loc_ghost = true}};
   attr_payload = Ppxlib_ast.Ast.PStr [];
   attr_loc =
    {Ppxlib_ast.Ast.loc_start =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_end =
-     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+     {Ppxlib_ast.Ast.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
       pos_cnum = -1};
     loc_ghost = true}}]
 |}]
diff --git a/test/quoter/test.ml b/test/quoter/test.ml
index d028a9c59..017515f54 100644
--- a/test/quoter/test.ml
+++ b/test/quoter/test.ml
@@ -21,18 +21,18 @@ val expr1 : expression =
      {Ppxlib__.Import.txt = Ppxlib__.Import.Lident "__0";
       loc =
        {Ppxlib__.Import.loc_start =
-         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_end =
-         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_ghost = true}};
    pexp_loc =
     {Ppxlib__.Import.loc_start =
-      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
        pos_cnum = -1};
      loc_end =
-      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
        pos_cnum = -1};
      loc_ghost = true};
    pexp_loc_stack = []; pexp_attributes = []}
@@ -53,18 +53,18 @@ val expr2 : expression =
      {Ppxlib__.Import.txt = Ppxlib__.Import.Lident "__1";
       loc =
        {Ppxlib__.Import.loc_start =
-         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_end =
-         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+         {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
           pos_cnum = -1};
         loc_ghost = true}};
    pexp_loc =
     {Ppxlib__.Import.loc_start =
-      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
        pos_cnum = -1};
      loc_end =
-      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
        pos_cnum = -1};
      loc_ghost = true};
    pexp_loc_stack = []; pexp_attributes = []}
@@ -82,18 +82,18 @@ val expr3 : expression =
          {Ppxlib__.Import.txt = Ppxlib__.Import.Lident "__2";
           loc =
            {Ppxlib__.Import.loc_start =
-             {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+             {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
               pos_bol = 0; pos_cnum = -1};
             loc_end =
-             {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+             {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
               pos_bol = 0; pos_cnum = -1};
             loc_ghost = true}};
        pexp_loc =
         {Ppxlib__.Import.loc_start =
-          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_end =
-          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_ghost = true};
        pexp_loc_stack = []; pexp_attributes = []},
@@ -103,28 +103,28 @@ val expr3 : expression =
           ({Ppxlib__.Import.txt = Ppxlib__.Import.Lident "()";
             loc =
              {Ppxlib__.Import.loc_start =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true}},
           None);
         pexp_loc =
          {Ppxlib__.Import.loc_start =
-           {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+           {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
             pos_cnum = -1};
           loc_end =
-           {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+           {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
             pos_cnum = -1};
           loc_ghost = true};
         pexp_loc_stack = []; pexp_attributes = []})]);
    pexp_loc =
     {Ppxlib__.Import.loc_start =
-      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
        pos_cnum = -1};
      loc_end =
-      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
        pos_cnum = -1};
      loc_ghost = true};
    pexp_loc_stack = []; pexp_attributes = []}
@@ -148,18 +148,18 @@ val quoted : expression =
            {Ppxlib__.Import.txt = "__2";
             loc =
              {Ppxlib__.Import.loc_start =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true}};
          ppat_loc =
           {Ppxlib__.Import.loc_start =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_end =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_ghost = true};
          ppat_loc_stack = []; ppat_attributes = []};
@@ -171,19 +171,19 @@ val quoted : expression =
               ({Ppxlib__.Import.txt = Ppxlib__.Import.Lident "()";
                 loc =
                  {Ppxlib__.Import.loc_start =
-                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                     pos_bol = 0; pos_cnum = -1};
                   loc_end =
-                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                     pos_bol = 0; pos_cnum = -1};
                   loc_ghost = true}},
               None);
             ppat_loc =
              {Ppxlib__.Import.loc_start =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true};
             ppat_loc_stack = []; ppat_attributes = []},
@@ -194,18 +194,18 @@ val quoted : expression =
                   {Ppxlib__.Import.txt = Ppxlib__.Import.Lident "foo";
                    loc =
                     {Ppxlib__.Import.loc_start =
-                      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                        pos_bol = 0; pos_cnum = -1};
                      loc_end =
-                      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                      {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                        pos_bol = 0; pos_cnum = -1};
                      loc_ghost = true}};
                 pexp_loc =
                  {Ppxlib__.Import.loc_start =
-                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                     pos_bol = 0; pos_cnum = -1};
                   loc_end =
-                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                   {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                     pos_bol = 0; pos_cnum = -1};
                   loc_ghost = true};
                 pexp_loc_stack = []; pexp_attributes = []},
@@ -215,47 +215,47 @@ val quoted : expression =
                    ({Ppxlib__.Import.txt = Ppxlib__.Import.Lident "()";
                      loc =
                       {Ppxlib__.Import.loc_start =
-                        {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                        {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                          pos_bol = 0; pos_cnum = -1};
                        loc_end =
-                        {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                        {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                          pos_bol = 0; pos_cnum = -1};
                        loc_ghost = true}},
                    None);
                  pexp_loc =
                   {Ppxlib__.Import.loc_start =
-                    {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                    {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                      pos_bol = 0; pos_cnum = -1};
                    loc_end =
-                    {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+                    {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                      pos_bol = 0; pos_cnum = -1};
                    loc_ghost = true};
                  pexp_loc_stack = []; pexp_attributes = []})]);
             pexp_loc =
              {Ppxlib__.Import.loc_start =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true};
             pexp_loc_stack = []; pexp_attributes = []});
          pexp_loc =
           {Ppxlib__.Import.loc_start =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_end =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_ghost = true};
          pexp_loc_stack = []; pexp_attributes = []};
        pvb_attributes = [];
        pvb_loc =
         {Ppxlib__.Import.loc_start =
-          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_end =
-          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_ghost = true}};
       {Ppxlib__.Import.pvb_pat =
@@ -264,18 +264,18 @@ val quoted : expression =
            {Ppxlib__.Import.txt = "__1";
             loc =
              {Ppxlib__.Import.loc_start =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true}};
          ppat_loc =
           {Ppxlib__.Import.loc_start =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_end =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_ghost = true};
          ppat_loc_stack = []; ppat_attributes = []};
@@ -285,28 +285,28 @@ val quoted : expression =
            {Ppxlib__.Import.txt = Ppxlib__.Import.Lident "bar";
             loc =
              {Ppxlib__.Import.loc_start =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true}};
          pexp_loc =
           {Ppxlib__.Import.loc_start =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_end =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_ghost = true};
          pexp_loc_stack = []; pexp_attributes = []};
        pvb_attributes = [];
        pvb_loc =
         {Ppxlib__.Import.loc_start =
-          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_end =
-          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+          {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
            pos_cnum = -1};
          loc_ghost = true}};
       {Ppxlib__.Import.pvb_pat =
@@ -315,15 +315,15 @@ val quoted : expression =
            {Ppxlib__.Import.txt = "__0";
             loc =
              {Ppxlib__.Import.loc_start =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_end =
-               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1;
+               {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0;
                 pos_bol = 0; pos_cnum = -1};
               loc_ghost = true}};
          ppat_loc =
           {Ppxlib__.Import.loc_start =
-            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0;
+            {Ppxlib__.Import.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0;
              pos_cnum = -1};
            loc_end = ...; loc_ghost = ...};
          ppat_loc_stack = ...; ppat_attributes = ...};
diff --git a/test/type_is_recursive/test.ml b/test/type_is_recursive/test.ml
index 8f24b81f0..ae7a75e1f 100644
--- a/test/type_is_recursive/test.ml
+++ b/test/type_is_recursive/test.ml
@@ -14,9 +14,9 @@ let loc = Location.none
 [%%expect{|
 val loc : location =
   {Ppxlib.Location.loc_start =
-    {Lexing.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0; pos_cnum = -1};
+    {Lexing.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0; pos_cnum = -1};
    loc_end =
-    {Lexing.pos_fname = "_none_"; pos_lnum = 1; pos_bol = 0; pos_cnum = -1};
+    {Lexing.pos_fname = "_none_"; pos_lnum = 0; pos_bol = 0; pos_cnum = -1};
    loc_ghost = true}
 |}]