diff --git a/modules/$.iter-detect.js b/modules/$.iter-detect.js
index 3aa84d4d65b1..bff5fffb4dc8 100644
--- a/modules/$.iter-detect.js
+++ b/modules/$.iter-detect.js
@@ -13,7 +13,7 @@ module.exports = function(exec, skipClosing){
   try {
     var arr  = [7]
       , iter = arr[ITERATOR]();
-    iter.next = function(){ safe = true; };
+    iter.next = function(){ return {done: safe = true}; };
     arr[ITERATOR] = function(){ return iter; };
     exec(arr);
   } catch(e){ /* empty */ }