diff --git a/nixos/modules/services/caddy.nix b/nixos/modules/services/caddy.nix
index 86995ec..8c00f8b 100755
--- a/nixos/modules/services/caddy.nix
+++ b/nixos/modules/services/caddy.nix
@@ -17,7 +17,7 @@ in {
     };
   };
 
-  users.users.${service}.extraGroups = ["acme" "nextcloud" "mastodon"];
+  users.users.${service.name}.extraGroups = ["acme" "nextcloud" "mastodon"];
 
   networking = {
     firewall = {