diff --git a/_includes/site-header.html b/_includes/site-header.html
index c8ba7af54dc33bf5be2d357e08ae1931ba4231af..e4be7d179302b61e3a7b47a75b74fcc6e6c36f54 100644
--- a/_includes/site-header.html
+++ b/_includes/site-header.html
@@ -7,4 +7,7 @@
 
   {% include site-feature.html %}
 
+  <link rel="stylesheet" type="text/css" href="https://pretix.chaotikum.org/chaotikum/bdgng/widget/v1.css">
+  <script type="text/javascript" src="https://pretix.chaotikum.org/widget/v1.de-informal.js" async></script>
+  
 </header>