diff --git a/python-pyftpdlib.spec b/python-pyftpdlib.spec
index b903b2e..eef09df 100644
--- a/python-pyftpdlib.spec
+++ b/python-pyftpdlib.spec
@@ -91,8 +91,8 @@ EOF
 %{python_expand # pytest macro does not work. The tests parse CLI args and fail if there are any unknown program args
 export PYTHONPATH=%{buildroot}%{$python_sitelib}
 export PYTHONDONTWRITEBYTECODE=1
-# # gh#giampaolo/pyftpdlib#540
-# export PYTEST_ADDOPTS="-k 'not (TestFtpListingCmdsTLSMixin or TestConfigurableOptions or TestFtpStoreDataTLSMixin)'"
+# gh#giampaolo/pyftpdlib#540
+export PYTEST_ADDOPTS="-k 'not (TestFtpListingCmdsTLSMixin or TestConfigurableOptions or TestFtpStoreDataTLSMixin)'"
 # gh#giampaolo/pyftpdlib#478
 export TZ=GMT+1
 $python -m pytest