diff --git a/python-sphinxcontrib-websupport.spec b/python-sphinxcontrib-websupport.spec
index 8ae0e70..2d11137 100644
--- a/python-sphinxcontrib-websupport.spec
+++ b/python-sphinxcontrib-websupport.spec
@@ -50,7 +50,11 @@ rm -rf %{pypi_name}.egg-info
 %py3_install
 
 %check
-%{__python3} -m pytest tests/
+mkdir empty && pushd empty # don't run the tests from sources
+export PYTHONPATH=%{buildroot}%{python3_sitelib}
+%{__python3} -m pytest ../tests
+popd
+rmdir empty
 
 %files -n python3-%{pypi_name}
 %license LICENSE