diff --git a/modules/server/containers/apps/traefik.nix b/modules/server/containers/apps/traefik.nix
index d2b9d74..800428f 100644
--- a/modules/server/containers/apps/traefik.nix
+++ b/modules/server/containers/apps/traefik.nix
@@ -72,7 +72,7 @@ in {
             "--certificatesresolvers.default.acme.dnschallenge=true"
             "--certificatesresolvers.default.acme.dnschallenge.provider=${containerCfg.extra.provider}"
             "--certificatesresolvers.default.acme.storage=/custom/acme.json"
-          ] else []) ++ (if serverCfg.domain != "localhost" then [
+          ] else if serverCfg.domain != "localhost" then [
             "--certificatesresolvers.default.acme.httpchallenge=false"
             "--certificatesresolvers.default.acme.tlschallenge=true"
           ] else []);