diff --git a/python-tox.spec b/python-tox.spec
index 6ad51a0..72b7bc3 100644
--- a/python-tox.spec
+++ b/python-tox.spec
@@ -96,6 +96,8 @@ This is the HTML documentation for tox package.
 
 %prep
 %setup -q -n tox-%{version}
+# remove cmdline test as they exec tox binary that is alternatived by us
+rm -f tests/unit/test_z_cmdline.py
 
 %build
 %python_build
@@ -108,9 +110,10 @@ done
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
+export LANG=en_US.UTF-8
 export PYTHONDONTWRITEBYTECODE=1
 export PATH=%{buildroot}%{_bindir}:$PATH
-%python_expand PYTHONPATH=%{buildroot}%{$python_sitelib} py.test-%{$python_bin_suffix} -v
+%python_expand PYTHONPATH=%{buildroot}%{$python_sitelib} py.test-%{$python_bin_suffix} -v -k 'not network'
 
 %post
 %python_install_alternative tox tox-quickstart