diff --git a/bumblebee/popup_v2.py b/bumblebee/popup_v2.py
index 04a7554..7d0ad50 100644
--- a/bumblebee/popup_v2.py
+++ b/bumblebee/popup_v2.py
@@ -20,6 +20,7 @@ class PopupMenu(object):
         self._root.withdraw()
         self._menu = tk.Menu(self._root)
         self._menu.bind("<FocusOut>", self._on_focus_out)
+        self._menu.bind("<Leave>", self._on_focus_out)
 
     def _on_focus_out(self, event=None):
         self._root.destroy()