diff --git a/src/backend/catalog/Catalog.pm b/src/backend/catalog/Catalog.pm
index d2f48d1d0d..9699dfd8d5 100644
--- a/src/backend/catalog/Catalog.pm
+++ b/src/backend/catalog/Catalog.pm
@@ -411,6 +411,8 @@ sub GenerateArrayTypes
 	}
 
 	push @$types, @array_types;
+
+	return;
 }
 
 # Rename temporary files to final names.