diff --git a/gtk/gtkimcontextsimple.c b/gtk/gtkimcontextsimple.c
index 2743a27051..1d444e97ad 100644
--- a/gtk/gtkimcontextsimple.c
+++ b/gtk/gtkimcontextsimple.c
@@ -923,7 +923,7 @@ static const guint16 gtk_compose_ignore[] = {
   GDK_Hyper_L,
   GDK_Hyper_R,
   GDK_Mode_switch,
-  ISO_Level3_Shift
+  GDK_ISO_Level3_Shift
 };
 
 static void     gtk_im_context_simple_class_init         (GtkIMContextSimpleClass  *class);