diff --git a/pkgs/development/python-modules/nplusone/default.nix b/pkgs/development/python-modules/nplusone/default.nix
index 76b22857f172..5ddd76f88333 100644
--- a/pkgs/development/python-modules/nplusone/default.nix
+++ b/pkgs/development/python-modules/nplusone/default.nix
@@ -11,6 +11,7 @@
   peewee,
   pytest-django,
   pytestCheckHook,
+  pytest-cov-stub,
   six,
   sqlalchemy,
   webtest,
@@ -41,6 +42,7 @@ buildPythonPackage rec {
     peewee
     pytest-django
     pytestCheckHook
+    pytest-cov-stub
     sqlalchemy
     webtest
   ];
@@ -55,8 +57,7 @@ buildPythonPackage rec {
 
   postPatch = ''
     substituteInPlace pytest.ini \
-      --replace "python_paths" "pythonpath" \
-      --replace "--cov nplusone --cov-report term-missing" ""
+      --replace "python_paths" "pythonpath"
   '';
 
   disabledTests = [