diff --git a/testing/test_recwarn.py b/testing/test_recwarn.py
index 8a7edcddb..40d11cd04 100644
--- a/testing/test_recwarn.py
+++ b/testing/test_recwarn.py
@@ -248,6 +248,7 @@ class TestWarns(object):
         assert str(record[1].message) == "runtime"
 
         class MyUserWarning(UserWarning): pass
+
         class MyRuntimeWarning(RuntimeWarning): pass
 
         with pytest.warns((UserWarning, RuntimeWarning)) as record: