diff --git a/t/unit/test_mixins.py b/t/unit/test_mixins.py
index dfa1e2c68..a33412eb9 100644
--- a/t/unit/test_mixins.py
+++ b/t/unit/test_mixins.py
@@ -110,7 +110,6 @@ def se(*args, **kwargs):
             next(it)
         c.connection.heartbeat_check.assert_not_called()
 
-
     def test_Consumer_context(self):
         c, Acons, Bcons = self._context()