diff --git a/nixos/modules/services/desktops/flatpak.nix b/nixos/modules/services/desktops/flatpak.nix
index 766c252dbc4e..5756738c9fda 100644
--- a/nixos/modules/services/desktops/flatpak.nix
+++ b/nixos/modules/services/desktops/flatpak.nix
@@ -1,8 +1,16 @@
 # flatpak service.
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
 let
   cfg = config.services.flatpak;
-in {
+in
+
+{
   meta = {
     doc = ./flatpak.md;
     maintainers = pkgs.flatpak.meta.maintainers;
@@ -17,12 +25,12 @@ in {
     };
   };
 
-
   ###### implementation
   config = lib.mkIf cfg.enable {
 
     assertions = [
-      { assertion = (config.xdg.portal.enable == true);
+      {
+        assertion = (config.xdg.portal.enable == true);
         message = "To use Flatpak you must enable XDG Desktop Portals with xdg.portal.enable.";
       }
     ];