diff --git a/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf b/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf
index 2513b7c8..be0a2665 100644
--- a/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf
+++ b/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf
@@ -92,6 +92,7 @@ map $host $upstream_acme_challenge_host {
     ueberwachungsfrei.eu public-web-static.hosts.hamburg.ccc.de:31820;
     überwachungsfrei.eu public-web-static.hosts.hamburg.ccc.de:31820;
     xn--berwachungsfrei-yvb.eu public-web-static.hosts.hamburg.ccc.de:31820;
+    bildungsurlaub.hamburg.ccc.de public-web-static.hosts.hamburg.ccc.de:31820;
     default "";
 }
 
diff --git a/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf b/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
index 01d0b5d6..c7be7563 100644
--- a/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
+++ b/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
@@ -115,6 +115,7 @@ stream {
         ueberwachungsfrei.eu public-web-static.hosts.hamburg.ccc.de:8443;
         überwachungsfrei.eu public-web-static.hosts.hamburg.ccc.de:8443;
         xn--berwachungsfrei-yvb.eu public-web-static.hosts.hamburg.ccc.de:8443;
+        bildungsurlaub.hamburg.ccc.de public-web-static.hosts.hamburg.ccc.de:8443;
     }
 
     server {