diff --git a/pkgs/development/python-modules/bencoder/default.nix b/pkgs/development/python-modules/bencoder/default.nix
index ea855b26ebfe..51ab63bab42e 100644
--- a/pkgs/development/python-modules/bencoder/default.nix
+++ b/pkgs/development/python-modules/bencoder/default.nix
@@ -4,13 +4,15 @@
   buildPythonPackage,
   setuptools,
 }:
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "bencoder";
   version = "0.2.0";
   pyproject = true;
 
+  __structuredAttrs = true;
+
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     hash = "sha256-rENvM/3X51stkFdJHSq+77VjHvsTyBNAPbCtsRq1L8I=";
   };
 
@@ -27,4 +29,4 @@ buildPythonPackage rec {
     license = lib.licenses.gpl2;
     maintainers = with lib.maintainers; [ somasis ];
   };
-}
+})