diff --git a/tests/check_yaml_test.py b/tests/check_yaml_test.py
index c145fdc..73d6593 100644
--- a/tests/check_yaml_test.py
+++ b/tests/check_yaml_test.py
@@ -4,10 +4,12 @@
 from testing.util import get_resource_path
 
 
-@pytest.mark.parametrize(('filename', 'expected_retval'), (
-    ('bad_yaml.notyaml', 1),
-    ('ok_yaml.yaml', 0),
-))
+@pytest.mark.parametrize(
+    ('filename', 'expected_retval'), (
+        ('bad_yaml.notyaml', 1),
+        ('ok_yaml.yaml', 0),
+    ),
+)
 def test_check_yaml(filename, expected_retval):
     ret = check_yaml([get_resource_path(filename)])
     assert ret == expected_retval