diff --git a/lib/6to5/traverse/index.js b/lib/6to5/traverse/index.js
index 75397a179a..67633d20ef 100644
--- a/lib/6to5/traverse/index.js
+++ b/lib/6to5/traverse/index.js
@@ -37,7 +37,7 @@ var traverse = module.exports = function (parent, callbacks, blacklistTypes) {
 
       // replace node
       var maybeReplace = function (result) {
-        if (result != null) obj[key] = result;
+        if (result != null) node = obj[key] = result;
       };
 
       // enter