diff --git a/host_vars/gabriel.c3heaven.de b/host_vars/gabriel.c3heaven.de
index ca914eb03bf46fb1ea38497e67516bb6911e4ea3..0fd293cc7f14b533447b1040fc42bcffd0335f87 100644
--- a/host_vars/gabriel.c3heaven.de
+++ b/host_vars/gabriel.c3heaven.de
@@ -4,6 +4,7 @@ acmetool_cert_domains:
  - gabriel.c3heaven.de
  - c3heaven.de
  - lists.c3heaven.de
+ - md.c3heaven.de
  - sso.c3heaven.de
  - wiki.c3heaven.de