diff --git a/appstore.js b/appstore.js
index d50fe75..2cbc38b 100644
--- a/appstore.js
+++ b/appstore.js
@@ -1,6 +1,7 @@
 'use strict';
 
 var debug = require('debug')('e2e:appstore'),
+    fs = require('fs'),
     path = require('path'),
     request = require('superagent-sync'),
     sleep = require('sleep').sleep,