diff --git a/pkgs/development/python-modules/xknx/default.nix b/pkgs/development/python-modules/xknx/default.nix
index d836e43f0e87..870a37947e59 100644
--- a/pkgs/development/python-modules/xknx/default.nix
+++ b/pkgs/development/python-modules/xknx/default.nix
@@ -10,7 +10,7 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "xknx";
   version = "3.14.0";
   pyproject = true;
@@ -18,7 +18,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "XKNX";
     repo = "xknx";
-    tag = version;
+    tag = finalAttrs.version;
     hash = "sha256-22xKxdjf0WEF2efHiGCYVhTCZ5jrD+26oqBdlxHwYdU=";
   };
 
@@ -55,9 +55,9 @@ buildPythonPackage rec {
       packets. It provides support for KNX/IP routing and tunneling devices.
     '';
     homepage = "https://github.com/XKNX/xknx";
-    changelog = "https://github.com/XKNX/xknx/releases/tag/${src.tag}";
+    changelog = "https://github.com/XKNX/xknx/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ fab ];
     platforms = lib.platforms.linux;
   };
-}
+})