Index: sx-clientbuttons/sxclientbuttons.py
===================================================================
--- sx-clientbuttons/sxclientbuttons.py	(revision 880d60de64b64afb023616ad34572f19e3068f3b)
+++ sx-clientbuttons/sxclientbuttons.py	(revision 5e5ff8c70c8971fb4a242ece716271ff9f3b7999)
@@ -89,5 +89,5 @@
         # grab the specific button and modifier to allow the app to keep working!
         for modifier, button in self.bindings.iterkeys():
-            client.actor.grab_button(EventMask.ButtonPress,
+            client.window.grab_button(EventMask.ButtonPress,
                 button,
                 modifier,
@@ -97,5 +97,5 @@
             )
 
-        client.actor.push_handlers(on_button_press=on_button_press)
+        client.window.push_handlers(on_button_press=on_button_press)
 
     def on_unmanage_client(self, screen, client):
@@ -103,5 +103,5 @@
         if client.actor.valid:
             for modifier, button in self.bindings.iterkeys():
-                client.actor.ungrab_button(button, modifier)
+                client.window.ungrab_button(button, modifier)