diff --git a/pkgs/development/python-modules/visitor/default.nix b/pkgs/development/python-modules/visitor/default.nix
index c37c3f8abccc..584d9d9a558f 100644
--- a/pkgs/development/python-modules/visitor/default.nix
+++ b/pkgs/development/python-modules/visitor/default.nix
@@ -5,13 +5,13 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "visitor";
   version = "0.1.3";
   pyproject = true;
 
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     sha256 = "02j87v93c50gz68gbgclmbqjcwcr7g7zgvk7c6y4x1mnn81pjwrc";
   };
 
@@ -23,4 +23,4 @@ buildPythonPackage rec {
     license = lib.licenses.mit;
     maintainers = [ ];
   };
-}
+})