diff --git a/test/built-ins/Object/subclass-object-arg.js b/test/built-ins/Object/subclass-object-arg.js
index d4de31e5b9..9500340e2f 100644
--- a/test/built-ins/Object/subclass-object-arg.js
+++ b/test/built-ins/Object/subclass-object-arg.js
@@ -11,7 +11,6 @@ info: |
   1. If NewTarget is neither undefined nor the active function, then
     a. Return ? OrdinaryCreateFromConstructor(NewTarget, "%ObjectPrototype%").
   [...]
-  3. Return ! ToObject(value).
 features: [class, Reflect, Reflect.construct]
 ---*/
 
@@ -20,5 +19,8 @@ class O extends Object {}
 var o1 = new O({a: 1});
 var o2 = Reflect.construct(Object, [{b: 2}], O);
 
-assert.sameValue(o1.a, 1);
-assert.sameValue(o2.b, 2);
+assert.sameValue(o1.a, undefined);
+assert.sameValue(o2.b, undefined);
+
+assert.sameValue(Object.getPrototypeOf(o1), O.prototype);
+assert.sameValue(Object.getPrototypeOf(o2), O.prototype);