diff --git a/gdk/x11/gdkscreen-x11.c b/gdk/x11/gdkscreen-x11.c
index 8b2374e1e4..44bb69ffba 100644
--- a/gdk/x11/gdkscreen-x11.c
+++ b/gdk/x11/gdkscreen-x11.c
@@ -1520,7 +1520,7 @@ gdk_x11_screen_get_setting (GdkScreen   *screen,
   if (setting == NULL)
     goto out;
 
-  if (!g_value_type_transformable (G_VALUE_TYPE (setting), G_VALUE_TYPE (value)))
+  if (!g_value_transform (setting, value))
     {
       g_warning ("Cannot transform xsetting %s of type %s to type %s\n",
 		 name,
@@ -1529,8 +1529,6 @@ gdk_x11_screen_get_setting (GdkScreen   *screen,
       goto out;
     }
 
-  g_value_transform (setting, value);
-
   return TRUE;
 
  out: