diff --git a/src/extras/MovieClip.js b/src/extras/MovieClip.js
index 3a8586b..f4d8343 100644
--- a/src/extras/MovieClip.js
+++ b/src/extras/MovieClip.js
@@ -131,7 +131,7 @@
     }
 
     this.playing = false;
-    Ticker.off('tick', this.update);
+    Ticker.off('tick', this.update, this);
 };
 
 /**