diff --git a/404.html b/404.html
index 06ad764..d3922ae 100644
--- a/404.html
+++ b/404.html
@@ -9,8 +9,8 @@ permalink: /404.html
 </head>
 <body style='background:black'>
   <script>
-    var parts = window.location.pathname.split("/")
-    var target = parts.slice(-1);
+    let parts = window.location.pathname.split("/")
+    let target = parts.slice(-1);
     parts.splice(-1)
     document.location.href = parts.join("/")+"/#"+target
   </script>
diff --git a/index.html b/index.html
index addb9bb..1a394ed 100644
--- a/index.html
+++ b/index.html
@@ -11,7 +11,7 @@
 <body>
   <script>
     // protocole://url.domain.ext
-    var sites = [
+    let sites = [
         "https://wiki.xxiivv.com"
       , "http://estevancarlos.com"
       , "https://electro.pizza"
@@ -73,7 +73,7 @@
       , "https://ricky.codes"
       // Don't forget the comma! No trailing slashes
     ]
-    var portal = new Portal(sites);
+    let portal = new Portal(sites);
     portal.start();
   </script>
 </body>
diff --git a/scripts/portal.js b/scripts/portal.js
index 9dde826..f607856 100644
--- a/scripts/portal.js
+++ b/scripts/portal.js
@@ -1,3 +1,5 @@
+'use strict';
+
 function Portal(sites)
 {
   this.el = document.createElement("div");
@@ -26,10 +28,10 @@ function Portal(sites)
   
   this.directory = function()
   {
-    var html = ""
+    let html = ""
     
-    for(var id in this.sites){
-      var site = this.sites[id]
+    for(let id in this.sites){
+      let site = this.sites[id]
       html += `<ln>${id}) <a href='${site}'>${site.split("//")[1]}</a></ln>`
     }
     return `<list>${html}</list>\n${this.readme()}${this.buttons()}`
@@ -54,14 +56,14 @@ function Portal(sites)
   
   this.locate = function()
   {
-    var hash = this.location();
+    let hash = this.location();
     
     if(hash == "random"){
       return Math.floor(Math.random()*this.sites.length)
     }
     
-    for(var id in this.sites){
-      var site = this.sites[id];
+    for(let id in this.sites){
+      let site = this.sites[id];
       if(site.indexOf(hash) >-1){
         return parseInt(id)
       }
@@ -76,8 +78,8 @@ function Portal(sites)
   
   this.redirect = function()
   {
-    var location = this.locate();
-    var target = this.next(location);
+    let location = this.locate();
+    let target = this.next(location);
     this.navigate(target)
     return `<p>Redirecting to <b>${target}</b></p><meta http-equiv="refresh" content="3; url=${target}">
     <p class='buttons'><a href='#' onClick="portal.reload('')">Directory</a> | <a href='#${target}' onClick="portal.reload('random')">Skip</a> | <a href='#random' onClick="portal.reload('random')">Random</a> | <a href='https://github.com/XXIIVV/webring'>Information</a> <a id='icon'  href='#random' onClick="portal.reload('random')"></a></p>`
