diff --git a/mpv.py b/mpv.py
index 6cbb31d..ec5b168 100644
--- a/mpv.py
+++ b/mpv.py
@@ -815,7 +815,6 @@ class MPV(object):
 
         my_handler.unregister_mpv_events()
         """
-        callback.unregister_mpv_events = partial(self.unregister_event_callback, callback)
         self._event_callbacks.append(callback)
 
     def unregister_event_callback(self, callback):