diff --git a/json_server/views/layout.erb b/json_server/views/layout.erb
index c2d77c9..f07042b 100644
--- a/json_server/views/layout.erb
+++ b/json_server/views/layout.erb
@@ -28,6 +28,18 @@
   <link rel="stylesheet" href="css/monthpicker.css">
   <script src="js/libs/modernizr-1.7.min.js"></script>
 
+  <script type="text/javascript">
+  /* <![CDATA[ */
+    (function() {
+        var s = document.createElement('script'), t = document.getElementsByTagName('script')[0];
+        s.type = 'text/javascript';
+        s.async = true;
+        s.src = 'http://api.flattr.com/js/0.6/load.js?mode=auto';
+        t.parentNode.insertBefore(s, t);
+    })();
+  /* ]]> */
+  </script>
+
 </head>
 
 <body>
@@ -42,7 +54,10 @@
       </div>
       <div class="span-3">
         <a href="http://github.com/alx/politimap">code</a><br>
-        <a href="http://cpc.regardscitoyens.org/trac/wiki/API">api</a>
+        <a href="http://cpc.regardscitoyens.org/trac/wiki/API">api</a><br>
+        <a class="FlattrButton" style="display:none;" rev="flattr;button:compact;" href="http://politimap.tetalab.org"></a>
+        <noscript><a href="http://flattr.com/thing/357242/Politimap-Quels-dputs-participent-lAssemble-Nationale" target="_blank">
+        <img src="http://api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0" /></a></noscript>
       </div>
       <div class="span-3 last">
         <a href="http://www.patrick-wied.at/static/heatmapjs/">heatmap.js</a><br>
