diff --git a/lib/6to5/traversal/scope.js b/lib/6to5/traversal/scope.js
index 5b0d5d95c5..8304a4f1ac 100644
--- a/lib/6to5/traversal/scope.js
+++ b/lib/6to5/traversal/scope.js
@@ -526,7 +526,7 @@ Scope.prototype.crawl = function () {
 Scope.prototype.push = function (opts) {
   var block = this.block;
 
-  if (t.isFor(block) || t.isCatchClause(block) || t.isFunction(block)) {
+  if (t.isLoop(block) || t.isCatchClause(block) || t.isFunction(block)) {
     t.ensureBlock(block);
     block = block.body;
   }