diff --git a/pkgs/development/python-modules/zwave-js-server-python/default.nix b/pkgs/development/python-modules/zwave-js-server-python/default.nix
index b223dcfef9ba..f1934a8626b4 100644
--- a/pkgs/development/python-modules/zwave-js-server-python/default.nix
+++ b/pkgs/development/python-modules/zwave-js-server-python/default.nix
@@ -10,7 +10,7 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "zwave-js-server-python";
   version = "0.68.0";
   pyproject = true;
@@ -20,7 +20,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "home-assistant-libs";
     repo = "zwave-js-server-python";
-    tag = version;
+    tag = finalAttrs.version;
     hash = "sha256-NfK+/nuQjlAgg4ZCifo/KoPrgc5FHhEmdK8utnm1iDI=";
   };
 
@@ -41,9 +41,9 @@ buildPythonPackage rec {
   meta = {
     description = "Python wrapper for zwave-js-server";
     homepage = "https://github.com/home-assistant-libs/zwave-js-server-python";
-    changelog = "https://github.com/home-assistant-libs/zwave-js-server-python/releases/tag/${src.tag}";
-    license = with lib.licenses; [ asl20 ];
+    changelog = "https://github.com/home-assistant-libs/zwave-js-server-python/releases/tag/${finalAttrs.src.tag}";
+    license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ fab ];
     mainProgram = "zwave-js-server-python";
   };
-}
+})