diff --git a/nixos/modules/services/backup/duplicati.nix b/nixos/modules/services/backup/duplicati.nix
index 2b9e171d7d80..85f508141ba7 100644
--- a/nixos/modules/services/backup/duplicati.nix
+++ b/nixos/modules/services/backup/duplicati.nix
@@ -1,27 +1,24 @@
 { config, pkgs, lib, ... }:
-
-with lib;
-
 let
   cfg = config.services.duplicati;
 in
 {
   options = {
     services.duplicati = {
-      enable = mkEnableOption "Duplicati";
+      enable = lib.mkEnableOption "Duplicati";
 
-      package = mkPackageOption pkgs "duplicati" { };
+      package = lib.mkPackageOption pkgs "duplicati" { };
 
-      port = mkOption {
+      port = lib.mkOption {
         default = 8200;
-        type = types.port;
+        type = lib.types.port;
         description = ''
           Port serving the web interface
         '';
       };
 
-      dataDir = mkOption {
-        type = types.str;
+      dataDir = lib.mkOption {
+        type = lib.types.str;
         default = "/var/lib/duplicati";
         description = ''
           The directory where Duplicati stores its data files.
@@ -34,18 +31,18 @@ in
         '';
       };
 
-      interface = mkOption {
+      interface = lib.mkOption {
         default = "127.0.0.1";
-        type = types.str;
+        type = lib.types.str;
         description = ''
           Listening interface for the web UI
           Set it to "any" to listen on all available interfaces
         '';
       };
 
-      user = mkOption {
+      user = lib.mkOption {
         default = "duplicati";
-        type = types.str;
+        type = lib.types.str;
         description = ''
           Duplicati runs as it's own user. It will only be able to backup world-readable files.
           Run as root with special care.
@@ -54,21 +51,21 @@ in
     };
   };
 
-  config = mkIf cfg.enable {
+  config = lib.mkIf cfg.enable {
     environment.systemPackages = [ cfg.package ];
 
     systemd.services.duplicati = {
       description = "Duplicati backup";
       after = [ "network.target" ];
       wantedBy = [ "multi-user.target" ];
-      serviceConfig = mkMerge [
+      serviceConfig = lib.mkMerge [
         {
           User = cfg.user;
           Group = "duplicati";
           ExecStart = "${cfg.package}/bin/duplicati-server --webservice-interface=${cfg.interface} --webservice-port=${toString cfg.port} --server-datafolder=${cfg.dataDir}";
           Restart = "on-failure";
         }
-        (mkIf (cfg.dataDir == "/var/lib/duplicati") {
+        (lib.mkIf (cfg.dataDir == "/var/lib/duplicati") {
           StateDirectory = "duplicati";
         })
       ];