diff --git a/test/index.html b/test/index.html
index 67e85f4e4..a65a4fe9b 100644
--- a/test/index.html
+++ b/test/index.html
@@ -251,7 +251,7 @@
 				delete Object._defineProperty;
 				delete Object._getPrototypeOf;
 				delete Object._keys;
-				delete objectProto._hasOwnProperty;
+				delete objectProto._propertyIsEnumerable;
 				delete stringProto._contains;
 			}
 			QUnit.config.hidepassed = true;