diff --git a/src/webui/www/private/index.html b/src/webui/www/private/index.html
index 1b5d2a3e7..ba632c571 100644
--- a/src/webui/www/private/index.html
+++ b/src/webui/www/private/index.html
@@ -18,22 +18,22 @@
     <noscript>
         <link rel="stylesheet" type="text/css" href="css/noscript.css?v=${CACHEID}" />
     </noscript>
-    <script src="scripts/lib/MooTools-Core-1.6.0-compat-compressed.js"></script>
-    <script src="scripts/lib/MooTools-More-1.6.0-compat-compressed.js"></script>
-    <script src="scripts/lib/mocha.min.js"></script>
-    <script src="scripts/cache.js?v=${CACHEID}"></script>
-    <script src="scripts/localpreferences.js?v=${CACHEID}"></script>
-    <script src="scripts/mocha-init.js?locale=${LANG}&v=${CACHEID}"></script>
-    <script src="scripts/lib/clipboard.min.js"></script>
-    <script src="scripts/filesystem.js?v=${CACHEID}"></script>
-    <script src="scripts/misc.js?locale=${LANG}&v=${CACHEID}"></script>
-    <script src="scripts/progressbar.js?v=${CACHEID}"></script>
-    <script src="scripts/piecesbar.js?v=${CACHEID}"></script>
-    <script src="scripts/file-tree.js?v=${CACHEID}"></script>
-    <script src="scripts/dynamicTable.js?locale=${LANG}&v=${CACHEID}"></script>
-    <script src="scripts/rename-files.js?v=${CACHEID}"></script>
-    <script src="scripts/client.js?locale=${LANG}&v=${CACHEID}"></script>
-    <script src="scripts/contextmenu.js?locale=${LANG}&v=${CACHEID}"></script>
+    <script defer src="scripts/lib/MooTools-Core-1.6.0-compat-compressed.js"></script>
+    <script defer src="scripts/lib/MooTools-More-1.6.0-compat-compressed.js"></script>
+    <script defer src="scripts/lib/mocha.min.js"></script>
+    <script defer src="scripts/cache.js?v=${CACHEID}"></script>
+    <script defer src="scripts/localpreferences.js?v=${CACHEID}"></script>
+    <script defer src="scripts/mocha-init.js?locale=${LANG}&v=${CACHEID}"></script>
+    <script defer src="scripts/lib/clipboard.min.js"></script>
+    <script defer src="scripts/filesystem.js?v=${CACHEID}"></script>
+    <script defer src="scripts/misc.js?locale=${LANG}&v=${CACHEID}"></script>
+    <script defer src="scripts/progressbar.js?v=${CACHEID}"></script>
+    <script defer src="scripts/piecesbar.js?v=${CACHEID}"></script>
+    <script defer src="scripts/file-tree.js?v=${CACHEID}"></script>
+    <script defer src="scripts/dynamicTable.js?locale=${LANG}&v=${CACHEID}"></script>
+    <script defer src="scripts/rename-files.js?v=${CACHEID}"></script>
+    <script defer src="scripts/client.js?locale=${LANG}&v=${CACHEID}"></script>
+    <script defer src="scripts/contextmenu.js?locale=${LANG}&v=${CACHEID}"></script>
 </head>
 
 <body>
diff --git a/src/webui/www/public/index.html b/src/webui/www/public/index.html
index b8c95be4f..095d46cd6 100644
--- a/src/webui/www/public/index.html
+++ b/src/webui/www/public/index.html
@@ -11,7 +11,7 @@
     <noscript>
         <link rel="stylesheet" type="text/css" href="css/noscript.css?v=${CACHEID}" />
     </noscript>
-    <script src="scripts/login.js?locale=${LANG}&v=${CACHEID}"></script>
+    <script defer src="scripts/login.js?locale=${LANG}&v=${CACHEID}"></script>
 </head>
 
 <body>
