diff --git a/src/os_w32exe.c b/src/os_w32exe.c
index 93a1389..d8fa2bf 100644
--- a/src/os_w32exe.c
+++ b/src/os_w32exe.c
@@ -69,7 +69,7 @@
 
 #ifdef DYNAMIC_GETTEXT
     /* Initialize gettext library */
-    dyn_libintl_init(NULL);
+    dyn_libintl_init();
 #endif
 
 #ifdef VIMDLL