diff --git a/pkgs/development/python-modules/test2ref/default.nix b/pkgs/development/python-modules/test2ref/default.nix
index e7f393fb3eb5..345c8e4de8e2 100644
--- a/pkgs/development/python-modules/test2ref/default.nix
+++ b/pkgs/development/python-modules/test2ref/default.nix
@@ -2,8 +2,14 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+
+  # build-system
   pdm-backend,
+
+  # dependencies
   binaryornot,
+
+  # tests
   pytest-cov-stub,
   pytestCheckHook,
 }: