diff --git a/index.html b/index.html
index 53f74ad..6e24ed3 100644
--- a/index.html
+++ b/index.html
@@ -1,5 +1,20 @@
 <html>
+    <head>
+        <script>
+            window.onload = function() {
+                var path = window.location.pathname;
+                if (path.endsWith('index.html')) {
+                    path = path.substr(path, path.length - 'index.html'.length);
+                }
+                var url = 'https://workadventu.re/_/global/'+window.location.host+path+'map.json';
+                document.getElementById('mapLink').href = url;
+                document.getElementById('mapLink').innerText = url;
+            };
+        </script>
+    </head>
     <body>
-        This website contains a map for <a href="https://workadventu.re">Workadventu.re</a>
+        This website contains a map for <a href="https://workadventu.re">Workadventu.re</a>.
+        <br/>
+        You can access this map at <a id="mapLink" href=""></a>
     </body>
 </html>
