diff --git a/shim.js b/shim.js
index 65d986e63..c30414218 100644
--- a/shim.js
+++ b/shim.js
@@ -1,3 +1,4 @@
+/* global __DEV__, localStorage */
 if (typeof __dirname === 'undefined') global.__dirname = '/'
 if (typeof __filename === 'undefined') global.__filename = ''
 if (typeof process === 'undefined') {