diff --git a/nixos/modules/services/logging/logrotate.nix b/nixos/modules/services/logging/logrotate.nix
index 8dfece8109d3..7e32296c7909 100644
--- a/nixos/modules/services/logging/logrotate.nix
+++ b/nixos/modules/services/logging/logrotate.nix
@@ -5,7 +5,7 @@ with lib;
 let
   cfg = config.services.logrotate;
 
-  pathOpts = { name, ... }:  {
+  pathOpts = { name, ... }: {
     options = {
       enable = mkOption {
         type = types.bool;
@@ -98,8 +98,8 @@ let
 
   paths = sortProperties (attrValues (filterAttrs (_: pathOpts: pathOpts.enable) cfg.paths));
   configText = concatStringsSep "\n" (
-      [ "missingok" "notifempty" cfg.extraConfig ] ++ (map mkConf paths)
-    );
+    [ "missingok" "notifempty" cfg.extraConfig ] ++ (map mkConf paths)
+  );
   configFile = pkgs.writeText "logrotate.conf" configText;
 
   mailOption =
@@ -124,7 +124,7 @@ in
 
       paths = mkOption {
         type = with types; attrsOf (submodule pathOpts);
-        default = {};
+        default = { };
         description = ''
           Attribute set of paths to rotate. The order each block appears in the generated configuration file
           can be controlled by the <link linkend="opt-services.logrotate.paths._name_.priority">priority</link> option
@@ -163,13 +163,16 @@ in
   };
 
   config = mkIf cfg.enable {
-    assertions = mapAttrsToList (name: pathOpts:
-      { assertion = (pathOpts.user != null) == (pathOpts.group != null);
-        message = ''
-          If either of `services.logrotate.paths.${name}.user` or `services.logrotate.paths.${name}.group` are specified then *both* must be specified.
-        '';
-      }
-    ) cfg.paths;
+    assertions = mapAttrsToList
+      (name: pathOpts:
+        {
+          assertion = (pathOpts.user != null) == (pathOpts.group != null);
+          message = ''
+            If either of `services.logrotate.paths.${name}.user` or `services.logrotate.paths.${name}.group` are specified then *both* must be specified.
+          '';
+        }
+      )
+      cfg.paths;
 
     systemd.services.logrotate = {
       description = "Logrotate Service";