diff --git a/env/wsh.js b/env/wsh.js
index 8261322c7b..1cc6ca294c 100644
--- a/env/wsh.js
+++ b/env/wsh.js
@@ -1,4 +1,4 @@
-/*jshint evil: true, wsh: true */
+/*jshint evil: true, shadow: true, wsh: true */
 /*global JSHINT: false */
 
 (function() {