--- a/tests/messaging/test_mqtt.py
+++ b/tests/messaging/test_mqtt.py
@@ -3,6 +3,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later

+import time
 from datetime import datetime
 from uuid import UUID

@@ -93,6 +94,8 @@ class MQTTDaemonTestCase(TestCase):

         daemon.run()

+        time.sleep(3)
+
         client.connect.assert_called_with()

         client.loop_start.assert_called_with()