diff --git a/gtk/gtkimcontextsimple.c b/gtk/gtkimcontextsimple.c
index 074ffdd01f..1cbb64cf45 100644
--- a/gtk/gtkimcontextsimple.c
+++ b/gtk/gtkimcontextsimple.c
@@ -105,7 +105,10 @@ static const guint16 gtk_compose_ignore[] = {
   GDK_KEY_Hyper_L,
   GDK_KEY_Hyper_R,
   GDK_KEY_Mode_switch,
-  GDK_KEY_ISO_Level3_Shift
+  GDK_KEY_ISO_Level3_Shift,
+  GDK_KEY_ISO_Level3_Latch,
+  GDK_KEY_ISO_Level5_Shift,
+  GDK_KEY_ISO_Level5_Latch
 };
 
 static void     gtk_im_context_simple_finalize           (GObject                  *obj);