diff --git a/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf b/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf
index dac2ecc51..6f7a57d19 100644
--- a/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf
+++ b/resources/chaosknoten/public-reverse-proxy/nginx/acme_challenge.conf
@@ -83,6 +83,7 @@ map $host $upstream_acme_challenge_host {
     lokal.ccc.de 172.31.17.151:31820;
     local.ccc.de 172.31.17.151:31820;
     acmedns.hamburg.ccc.de acmedns.hosts.hamburg.ccc.de:31820;
+    diday.org 172.31.17.151:31820;
     did.hamburg.ccc.de 172.31.17.151:31820;
     staging.did.hamburg.ccc.de 172.31.17.151:31820;
     default "";
diff --git a/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf b/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
index 2fc542085..b126fc305 100644
--- a/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
+++ b/resources/chaosknoten/public-reverse-proxy/nginx/nginx.conf
@@ -102,6 +102,7 @@ stream {
         local.ccc.de 172.31.17.151:8443;
         acmedns.hamburg.ccc.de acmedns.hosts.hamburg.ccc.de:8443;
         did.hamburg.ccc.de 172.31.17.151:8443;
+        diday.org 172.31.17.151:8443;
         staging.did.hamburg.ccc.de 172.31.17.151:8443;
     }