diff --git a/src/as/com/threerings/util/ClassUtil.as b/src/as/com/threerings/util/ClassUtil.as
index 111c48474..7c0d07477 100644
--- a/src/as/com/threerings/util/ClassUtil.as
+++ b/src/as/com/threerings/util/ClassUtil.as
@@ -68,7 +68,7 @@ public class ClassUtil
 
     public static function isSameClass (obj1 :Object, obj2 :Object) :Boolean
     {
-        return (getClass(obj1) == getClass(obj2));
+        return (getQualifiedClassName(obj1) == getQualifiedClassName(obj2));
     }
 
     public static function getClass (obj :Object) :Class