diff --git a/src/focus.c b/src/focus.c
index cdcd983b..31b4e26a 100644
--- a/src/focus.c
+++ b/src/focus.c
@@ -573,6 +573,10 @@ FocusHandleEnter(EWin * ewin, XEvent * ev)
 	  }
      }
 
+   if (ev->xcrossing.mode == NotifyUngrab &&
+       ev->xcrossing.detail == NotifyNonlinearVirtual)
+      return;
+
    switch (Conf.focus.mode)
      {
      default: