diff --git a/hosts/rpi4/authelia.nix b/hosts/rpi4/authelia.nix
index a47e46a..4141e6e 100644
--- a/hosts/rpi4/authelia.nix
+++ b/hosts/rpi4/authelia.nix
@@ -24,16 +24,18 @@ let
     instance:
     let
       inherit (config.services.authelia.instances.${instance}.settings) server;
-      inherit (server) port;
-      host =
-        if server.host == "0.0.0.0" then
+      port = server.port or 9091;
+      host = server.host or "127.0.0.1";
+
+      targetHost = 
+        if host == "0.0.0.0" then
           "127.0.0.1"
-        else if lib.hasInfix ":" server.host then
+        else if lib.hasInfix ":" host then
           throw "TODO IPv6 not supported in Authelia server address (hard to parse, can't tell if it is [::])."
         else
-          server.host;
+          host;
     in
-    "http://${host}:${toString port}";
+    "http://${targetHost}:${toString port}";
 
   # use this when reverse proxying to authelia (and only authelia because i
   # like the nixos recommended proxy settings better)