diff --git a/lib/server/update.js b/lib/server/update.js
index c65456bf..b8c633c2 100644
--- a/lib/server/update.js
+++ b/lib/server/update.js
@@ -15,12 +15,13 @@
     var main            = global.cloudcmd.main,
         mainpackage     = main.mainpackage || {},
         exec            = main.child_process.exec,
+        fs              = require('fs'),
         Util            = main.util,
         DIR             = main.DIR;
     
     exports.get = function() {
-        fs.readdir(DIR, function(err, list) {
-            var isGit = list.indexOf('.git') >= 0;
+        fs.readdir(DIR, function(err, files) {
+            var isGit = !~files.indexOf('.git');
             
             if (!err && isGit)
                 exec('git pull --rebase', {cwd : DIR}, pull);