diff --git a/www/common/outer/sharedfolder.js b/www/common/outer/sharedfolder.js
index 4e6d548a3..bcee83472 100644
--- a/www/common/outer/sharedfolder.js
+++ b/www/common/outer/sharedfolder.js
@@ -44,7 +44,7 @@ define([
                 return void cb();
             }
         }, 100);
-        var to = setTimeout(function () {
+        to = setTimeout(function () {
             clearInterval(it);
             uo.migrateReadOnly(function () {
                 done = true;