diff --git a/pkgs/development/python-modules/mwxml/default.nix b/pkgs/development/python-modules/mwxml/default.nix
index 5c66e226916..792b52f01ab 100644
--- a/pkgs/development/python-modules/mwxml/default.nix
+++ b/pkgs/development/python-modules/mwxml/default.nix
@@ -4,8 +4,8 @@
 , jsonschema
 , mwcli
 , mwtypes
-, pytestCheckHook
 , nose
+, pytestCheckHook
 }:
 
 buildPythonPackage rec {
@@ -23,9 +23,10 @@ buildPythonPackage rec {
     mwtypes
   ];
 
-  nativeCheckInputs = [ pytestCheckHook ];
-
-  checkInputs = [ nose ];
+  nativeCheckInputs = [
+    nose
+    pytestCheckHook
+  ];
 
   disabledTests = [
     "test_page_with_discussion"