diff --git a/resources/chaosknoten/auth-dns/zones/ccchh.net.zone b/resources/chaosknoten/auth-dns/zones/ccchh.net.zone
index c60074a9..4c8e7c92 100644
--- a/resources/chaosknoten/auth-dns/zones/ccchh.net.zone
+++ b/resources/chaosknoten/auth-dns/zones/ccchh.net.zone
@@ -79,7 +79,7 @@ hp-color            A     10.89.209.28
 
 club-assistant                  A     10.89.213.22
                                 AAAA  2a07:c481:1:36::32
-_acme-challenge.club-assistant  CNAME d50ad73a-f82d-4244-87f0-6f5195b37d21.auth.acmedns.hamburg.ccc.de.
+_acme-challenge.club-assistant  CNAME d50ad73a-f82d-4244-87f0-6f5195b37d21.auth.acmedns.hamburg.ccc.de
 
 
 esphome                         A     10.89.212.210