diff --git a/pkgs/development/python-modules/wled/default.nix b/pkgs/development/python-modules/wled/default.nix
index 2b81d25d30a8..d950cc72d0a2 100644
--- a/pkgs/development/python-modules/wled/default.nix
+++ b/pkgs/development/python-modules/wled/default.nix
@@ -11,6 +11,7 @@
   orjson,
   poetry-core,
   pytest-asyncio,
+  pytest-cov-stub,
   pytest-xdist,
   pytestCheckHook,
   pythonOlder,
@@ -37,7 +38,6 @@ buildPythonPackage rec {
     # Upstream doesn't set a version for the pyproject.toml
     substituteInPlace pyproject.toml \
       --replace-fail "0.0.0" "${version}" \
-      --replace-fail "--cov" ""
   '';
 
   build-system = [ poetry-core ];
@@ -62,6 +62,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     aresponses
     pytest-asyncio
+    pytest-cov-stub
     pytest-xdist
     pytestCheckHook
   ];