diff --git a/ennstatus/templates/donate/flattr.html b/ennstatus/templates/donate/flattr.html
--- a/ennstatus/templates/donate/flattr.html
+++ b/ennstatus/templates/donate/flattr.html
@@ -15,7 +15,9 @@
 
     <p>We do accept <strong>flattr</strong>. Help us to raise some more funds to support our infrastructure.</p>
     <p class="bg-info text-center">
-      <a href="https://flattr.com/submit/auto?user_id=FVDE&url=http%3A%2F%2Fenn.lu" target="_blank"><img src="//api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0"></a>
+      <a href="https://flattr.com/submit/auto?user_id=FVDE&url=https%3A%2F%2Fenn.lu/donate/flattr" target="_blank">
+        <img src="https://button.flattr.com/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0"></img>
+      </a>
     </p>
   </div>
 {% endblock %}