diff --git a/modules/nix/default.nix b/modules/nix/default.nix
index 1105d91..d084c23 100644
--- a/modules/nix/default.nix
+++ b/modules/nix/default.nix
@@ -97,5 +97,6 @@ in
       "192.168.191.46" = [ "zap" ];
       "192.168.191.142" = [ "kuraokami" ];
     };
+    users.mutableUsers = false;
   };
 }