diff --git a/src/as/com/threerings/util/MediaContainer.as b/src/as/com/threerings/util/MediaContainer.as
index d73d99cd6..5b73dc9e2 100644
--- a/src/as/com/threerings/util/MediaContainer.as
+++ b/src/as/com/threerings/util/MediaContainer.as
@@ -305,6 +305,11 @@ public class MediaContainer extends Sprite
         return 1;
     }
 
+    override public function toString () :String
+    {
+        return "MediaContainer[url=" + _url + "]";
+    }
+
     /**
      * Return the LoaderContext that should be used to load the media
      * at the specified url.