diff --git a/radicale/tests/test_hook_rabbitmq.py b/radicale/tests/test_hook_rabbitmq.py
index a50dfaa2..80abb55c 100644
--- a/radicale/tests/test_hook_rabbitmq.py
+++ b/radicale/tests/test_hook_rabbitmq.py
@@ -21,6 +21,7 @@ Radicale tests related to hook 'rabbitmq'
 
 import logging
 import os
+
 import pytest
 
 from radicale.tests import BaseTest