diff --git a/nixos/modules/misc/ids.nix b/nixos/modules/misc/ids.nix
index ca7fc9ebf8ad7e..a2c0438801ad7a 100644
--- a/nixos/modules/misc/ids.nix
+++ b/nixos/modules/misc/ids.nix
@@ -355,7 +355,6 @@ in
       rstudio-server = 324;
       localtimed = 325;
       automatic-timezoned = 326;
-      whisparr = 328;
 
       # When adding a uid, make sure it doesn't match an existing gid.
       #
@@ -683,7 +682,6 @@ in
       rstudio-server = 324;
       localtimed = 325;
       automatic-timezoned = 326;
-      whisparr = 328;
 
       # When adding a gid, make sure it doesn't match an existing
       # uid. Users and groups with the same name should have equal
diff --git a/nixos/modules/services/misc/whisparr.nix b/nixos/modules/services/misc/whisparr.nix
index 8594a682ec9f3e..bf15ee70fde440 100644
--- a/nixos/modules/services/misc/whisparr.nix
+++ b/nixos/modules/services/misc/whisparr.nix
@@ -64,10 +64,10 @@ in
       whisparr = {
         group = cfg.group;
         home = cfg.dataDir;
-        uid = config.ids.uids.whisparr;
+        isSystemUser = true;
       };
     };
 
-    users.groups = lib.mkIf (cfg.group == "whisparr") { whisparr.gid = config.ids.gids.whisparr; };
+    users.groups.whisparr = lib.mkIf (cfg.group == "whisparr") { };
   };
 }