diff --git a/tests/conftest.py b/tests/conftest.py
index 3705cd7b3..92b51143c 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -14,7 +14,7 @@ def pytest_configure(config):
     everest_prefix = config.getoption('--everest-prefix')
     everest_config_path = Path(everest_prefix) / 'etc/everest'
     everest_configs = [path for path in everest_config_path.iterdir(
-    ) if path.name.startswith('config-') and path.name.endswith('yaml')]
+    ) if path.name.startswith('config-') and path.name.endswith('.yaml')]
     pytest.everest_configs = {}
     pytest.everest_configs['params'] = []
     pytest.everest_configs['ids'] = []