diff --git a/hosts/containers/public-access-proxy/default.nix b/hosts/containers/public-access-proxy/default.nix
index eeed7e9e..cae337cd 100644
--- a/hosts/containers/public-access-proxy/default.nix
+++ b/hosts/containers/public-access-proxy/default.nix
@@ -69,6 +69,7 @@
     } {
       hostNames = [
         "hydra.hq.c3d2.de"
+        "hydra-ca.hq.c3d2.de"
         "nix-serve.hq.c3d2.de"
       ];
       proxyTo.host = config.c3d2.hosts.hydra.ip4;