diff --git a/pkgs/development/python-modules/oschmod/default.nix b/pkgs/development/python-modules/oschmod/default.nix
index 18a30b5c31aa..8ce9b703c6b2 100644
--- a/pkgs/development/python-modules/oschmod/default.nix
+++ b/pkgs/development/python-modules/oschmod/default.nix
@@ -3,6 +3,7 @@
   buildPythonPackage,
   fetchPypi,
   setuptools,
+  pytestCheckHook,
 }:
 
 buildPythonPackage rec {
@@ -12,10 +13,15 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-vsmSFvMWFe5lOypch8rPtOS2GEwOn3HaGGMA2srpdPM=";
+    hash = "sha256-vsmSFvMWFe5lOypch8rPtOS2GEwOn3HaGGMA2srpdPM=";
   };
+
   build-system = [ setuptools ];
 
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "oschmod" ];
+
   meta = {
     description = "Change file permissions on Windows, macOS, and Linux";
     homepage = "https://github.com/yakdriver/oschmod";