diff --git a/shell/view/frame/PanelWindow.py b/shell/view/frame/PanelWindow.py
index 02603134..7a27bc06 100644
--- a/shell/view/frame/PanelWindow.py
+++ b/shell/view/frame/PanelWindow.py
@@ -26,15 +26,15 @@ class PanelWindow(gtk.Window):
         self.set_decorated(False)
         self.connect('realize', self._realize_cb)
 
-        canvas = hippo.Canvas()
+        self._canvas = hippo.Canvas()
 
         self._bg = hippo.CanvasBox(background_color=0x414141ff)
-        canvas.set_root(self._bg)
+        self._canvas.set_root(self._bg)
 
-        self.add(canvas)
-        canvas.show()
+        self.add(self._canvas)
+        self._canvas.show()
 
-        self._menu_shell = MenuShell(canvas)
+        self._menu_shell = MenuShell(self._canvas)
 
         self.resize(width, height)
 
@@ -44,6 +44,9 @@ class PanelWindow(gtk.Window):
     def get_root(self):
         return self._bg
 
+    def get_canvas(self):
+        return self._canvas
+
     def _realize_cb(self, widget):
         self.window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG)
         self.window.set_accept_focus(False)
diff --git a/shell/view/frame/clipboardpanelwindow.py b/shell/view/frame/clipboardpanelwindow.py
index 2f63106f..1871f7d0 100644
--- a/shell/view/frame/clipboardpanelwindow.py
+++ b/shell/view/frame/clipboardpanelwindow.py
@@ -34,7 +34,7 @@ class ClipboardPanelWindow(PanelWindow):
         self.add_events(gtk.gdk.BUTTON_PRESS_MASK |
                         gtk.gdk.POINTER_MOTION_HINT_MASK)
         self.connect("motion_notify_event", box.motion_notify_event_cb)
-        self.connect("button_press_event", box.button_press_event_cb)
+        self.get_canvas().connect("button_press_event", box.button_press_event_cb)
         self.connect("drag_end", box.drag_end_cb)
         self.connect("drag_data_get", box.drag_data_get_cb)