diff --git a/pkgs/development/python-modules/xknxproject/default.nix b/pkgs/development/python-modules/xknxproject/default.nix
index 7296e403541b..bd7e126de6a1 100644
--- a/pkgs/development/python-modules/xknxproject/default.nix
+++ b/pkgs/development/python-modules/xknxproject/default.nix
@@ -1,12 +1,13 @@
-{ lib
-, buildPythonPackage
-, cryptography
-, fetchFromGitHub
-, pytestCheckHook
-, pythonOlder
-, pyzipper
-, setuptools
-, striprtf
+{
+  lib,
+  buildPythonPackage,
+  cryptography,
+  fetchFromGitHub,
+  pytestCheckHook,
+  pythonOlder,
+  pyzipper,
+  setuptools,
+  striprtf,
 }:
 
 buildPythonPackage rec {
@@ -23,9 +24,7 @@ buildPythonPackage rec {
     hash = "sha256-/Zg4MYOvbsbJ0zyKuq+gX0PNbm8TyyBMziIaGCq6Lt8=";
   };
 
-  build-system = [
-    setuptools
-  ];
+  build-system = [ setuptools ];
 
   dependencies = [
     cryptography
@@ -33,13 +32,9 @@ buildPythonPackage rec {
     striprtf
   ];
 
-  nativeCheckInputs = [
-    pytestCheckHook
-  ];
+  nativeCheckInputs = [ pytestCheckHook ];
 
-  pythonImportsCheck = [
-    "xknxproject"
-  ];
+  pythonImportsCheck = [ "xknxproject" ];
 
   meta = with lib; {
     description = "Library to extract KNX projects and parses the underlying XML";