diff --git a/en/index.html b/en/index.html
index 9d988a8..65b6598 100644
--- a/en/index.html
+++ b/en/index.html
@@ -97,7 +97,7 @@
           <p>You can register for TDF. Registration is voluntary and free, but you can support the
             event with a donation.</p>
           <div class="button-container">
-            <a href="https://pretix.cttue.de/cttue/tdf5" class="button disabled">Register</a>
+            <a href="https://pretix.cttue.de/cttue/tdf5" class="button">Register</a>
           </div>
         </div>