1 files changed, 1 insertions, 1 deletions
diff --git a/js/src/builtin/Classes.js b/js/src/builtin/Classes.js
index d0f20b5fd7..24841d605e 100644
--- a/js/src/builtin/Classes.js
+++ b/js/src/builtin/Classes.js
@@ -5,7 +5,7 @@
 var DefaultDerivedClassConstructor =
     class extends null {
         constructor(...args) {
-            super(...allowContentSpread(args));
+            super(...allowContentIter(args));
         }
     };
 MakeDefaultConstructor(DefaultDerivedClassConstructor);