diff --git a/manifests/globals.pp b/manifests/globals.pp
index ea025e4f9b..b9adfb4820 100644
--- a/manifests/globals.pp
+++ b/manifests/globals.pp
@@ -260,6 +260,7 @@
     '10'    => '2.4',
     '11'    => '3.0',
     '12'    => '3.0',
+    '16'    => '3.4',
     default => undef,
   }
   $globals_postgis_version = $postgis_version ? {