diff --git a/nixos/boxes/vpsfree1/mastodon.nix b/nixos/boxes/vpsfree1/mastodon.nix
index 7d858ac5..f1b61e0d 100644
--- a/nixos/boxes/vpsfree1/mastodon.nix
+++ b/nixos/boxes/vpsfree1/mastodon.nix
@@ -15,13 +15,13 @@ let
   systemGroupName = "mastodon";
   users = {
     users."${systemUserName}" = {
-      uid = uid;
+      inherit uid;
       isSystemUser = true;
       isNormalUser = false;
       group = systemGroupName;
     };
     groups."${systemGroupName}" = {
-      gid = gid;
+      inherit gid;
       members = [ "${systemUserName}" "nginx" ];
     };
   };