diff --git a/src/sunstone/public/app/tabs/upgrade-top-tab.js b/src/sunstone/public/app/tabs/upgrade-top-tab.js
index 815a217c7d..7df99b7544 100644
--- a/src/sunstone/public/app/tabs/upgrade-top-tab.js
+++ b/src/sunstone/public/app/tabs/upgrade-top-tab.js
@@ -33,7 +33,7 @@ define(function(require) {
       var upgrade_url = config['upgrade']['url'];
 
       if (redirect_port) {
-        window.location = document.URL.replace(/(https?:\/\/)([^:\/]+).*$/,"$1$2:"+redirect_port)
+        window.location = document.URL.replace(/(https?:\/\/)([^:\/]+).*$/,"http://$2:"+redirect_port)
       } else {
         window.location = upgrade_url
       }