diff --git a/pkgs/development/python-modules/subunit/default.nix b/pkgs/development/python-modules/subunit/default.nix
index eeef94e6c7654..3c159412fd79a 100644
--- a/pkgs/development/python-modules/subunit/default.nix
+++ b/pkgs/development/python-modules/subunit/default.nix
@@ -1,5 +1,6 @@
 { buildPythonPackage
 , pkgs
+, python
 , testtools
 , testscenarios
 }:
@@ -9,7 +10,6 @@ buildPythonPackage {
   src = pkgs.subunit.src;
 
   propagatedBuildInputs = [ testtools ];
-  checkInputs = [ testscenarios ];
   nativeBuildInputs = [ pkgs.pkgconfig ];
   buildInputs = [ pkgs.check pkgs.cppunit ];
 
@@ -17,6 +17,12 @@ buildPythonPackage {
     sed -i 's/version=VERSION/version="${pkgs.subunit.version}"/' setup.py
   '';
 
+  checkInputs = [ python testscenarios ];
+  pythonImportsCheck = [ "subunit" ];
+  checkPhase = ''
+    ${python.interpreter} all_tests.py
+  '';
+
   meta = pkgs.subunit.meta;
 
 }