diff --git a/mozilla/js/src/jsinterp.c b/mozilla/js/src/jsinterp.c
index 0961523a95e..64812d2bb46 100644
--- a/mozilla/js/src/jsinterp.c
+++ b/mozilla/js/src/jsinterp.c
@@ -5024,8 +5024,7 @@ interrupt:
                 ok = JS_FALSE;
                 goto out;
             }
-            parent = js_ConstructObject(cx, &js_ObjectClass, NULL, obj2,
-                                        0, NULL);
+            parent = js_NewObject(cx, &js_ObjectClass, NULL, obj2);
             if (!parent) {
                 ok = JS_FALSE;
                 goto out;