diff --git a/lib/6to5/traversal/scope.js b/lib/6to5/traversal/scope.js
index c446a69f19..5b0d5d95c5 100644
--- a/lib/6to5/traversal/scope.js
+++ b/lib/6to5/traversal/scope.js
@@ -403,8 +403,6 @@ Scope.prototype.addGlobal = function (node) {
 };
 
 Scope.prototype.hasGlobal = function (name) {
-  if (includes(Scope.globals, name)) return true;
-
   var scope = this;
 
   do {
@@ -639,6 +637,7 @@ Scope.prototype.hasBinding = function (name) {
   if (!name) return false;
   if (this.hasOwnBinding(name)) return true;
   if (this.parentHasBinding(name)) return true;
+  if (includes(Scope.globals, name)) return true;
   return false;
 };