diff --git a/gen/templates/models/11_rel_ops.go.tpl b/gen/templates/models/11_rel_ops.go.tpl
index 0ff49eb..72ad623 100644
--- a/gen/templates/models/11_rel_ops.go.tpl
+++ b/gen/templates/models/11_rel_ops.go.tpl
@@ -364,6 +364,8 @@
       return nil
     }
 
+    var err error
+
     {{if $rel.InsertEarly -}}
       inserted, err := {{$ftable.UpPlural}}.InsertMany(ctx, exec, related...)
       if err != nil {