diff --git a/source/webui/templates/index.tpl b/source/webui/templates/index.tpl
index c0fc255..321b583 100644
--- a/source/webui/templates/index.tpl
+++ b/source/webui/templates/index.tpl
@@ -14,7 +14,7 @@
         <script type="text/javascript" src="{$base_uri}scripts/3rdparty/less-1.1.5.min.js"></script>
         
         <!-- Bootstrap //-->
-        <link rel="stylesheet" href="http://twitter.github.com/bootstrap/1.4.0/bootstrap.min.css">
+        <link rel="stylesheet" href="//twitter.github.com/bootstrap/1.4.0/bootstrap.min.css">
         <script type="text/javascript" src="{$base_uri}scripts/3rdparty/bootstrap-alerts.js"></script>
         <script type="text/javascript" src="{$base_uri}scripts/3rdparty/bootstrap-twipsy.js"></script>
         <script type="text/javascript" src="{$base_uri}scripts/3rdparty/bootstrap-popover.js"></script>