diff --git a/pkgs/development/python-modules/ha-iotawattpy/default.nix b/pkgs/development/python-modules/ha-iotawattpy/default.nix
index 2cd5b6c0ffea..4fe401a0db48 100644
--- a/pkgs/development/python-modules/ha-iotawattpy/default.nix
+++ b/pkgs/development/python-modules/ha-iotawattpy/default.nix
@@ -7,13 +7,13 @@
   pytestCheckHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "ha-iotawattpy";
   version = "0.1.2";
   pyproject = true;
 
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     hash = "sha256-eMsBEbmENjbJME9Gzo4O9LbGo1i0MP0IuwLUAYqxbI8=";
   };
 
@@ -31,4 +31,4 @@ buildPythonPackage rec {
     license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})