diff --git a/tests/ignite/base/test_mixins.py b/tests/ignite/base/test_mixins.py
index 3bec57a873d..734384f3847 100644
--- a/tests/ignite/base/test_mixins.py
+++ b/tests/ignite/base/test_mixins.py
@@ -13,6 +13,7 @@ def test_state_dict():
     with pytest.raises(NotImplementedError):
         s.state_dict()
 
+
 def test_load_state_dict():
 
     s = ExampleSerializable()