diff --git a/module.nix b/module.nix
index 85d8399..317823a 100644
--- a/module.nix
+++ b/module.nix
@@ -4,6 +4,9 @@ with lib;
 
 let
   cfg = config.services.gobot;
+  defaultUser = "gobot";
+
+  inherit (lib) optionalAttrs;
 in
 {
   options.services.gobot = {
@@ -118,13 +121,16 @@ in
       ];
     };
 
-  };
+    users = optionalAttrs (cfg.user == defaultUser) {
+      users.${defaultUser} = {
+        isSystemUser = true;
+        group = defaultUser;
+        description = "Gobot Telegram bot user";
+      };
+
+      groups.${defaultUser} = { };
+    };
 
-  users.users.gobot = {
-    isSystemUser = true;
-    group = "gobot";
-    description = "Gobot Telegram bot user";
   };
 
-  users.groups.gobot = { };
 }