diff --git a/flake.nix b/flake.nix
index 1c42b8d..ccf5253 100644
--- a/flake.nix
+++ b/flake.nix
@@ -61,9 +61,9 @@
             isNormalUser = true;
             description = "John Lancaster";
             extraGroups = []
-            ++ lib.optionals config.root [ "wheel" ]
-            ++ lib.optionals config.docker [ "docker" ]
-            ++ lib.optionals config.networking.networkmanager.enable [ "networkmanager" ];
+            ++ lib.optional config.root "wheel"
+            ++ lib.optional config.docker "docker"
+            ++ lib.optional config.networking.networkmanager.enable "networkmanager";
           }
           (userOptions config)
         ];