diff --git a/gdk/quartz/gdkevents-quartz.c b/gdk/quartz/gdkevents-quartz.c
index 183537f..ee7dc96 100644
--- a/gdk/quartz/gdkevents-quartz.c
+++ b/gdk/quartz/gdkevents-quartz.c
@@ -1831,7 +1831,10 @@ gdk_event_translate (GdkEvent *event,
             if (tmp_view && [tmp_view respondsToSelector:@selector(isGtkView)])
               gtk_child = TRUE;

-            tmp_view = [tmp_view superview];
+            if ([tmp_view respondsToSelector:@selector(superview)])
+              tmp_view = [tmp_view superview];
+            else
+              tmp_view = NULL;
           }

         if (!gtk_child && ![[nswindow firstResponder] respondsToSelector:@selector(isGtkView)])