diff --git a/lib/6to5/traversal/index.js b/lib/6to5/traversal/index.js
index 8ebb8fbcd5..16d0934bfb 100644
--- a/lib/6to5/traversal/index.js
+++ b/lib/6to5/traversal/index.js
@@ -96,7 +96,7 @@ traverse.explode = function (obj) {
 function hasBlacklistedType(node, parent, scope, state) {
   if (node.type === state.type) {
     state.has = true;
-    context.skip();
+    this.skip();
   }
 }