diff --git a/tests/unit_tests/client_mocks.py b/tests/unit_tests/client_mocks.py
index b64a65ee..613119e0 100644
--- a/tests/unit_tests/client_mocks.py
+++ b/tests/unit_tests/client_mocks.py
@@ -12,7 +12,7 @@ from bec_lib.scan_history import ScanHistory
 from bec_widgets.tests.utils import DEVICES, DMMock, FakePositioner, Positioner
 
 
-def fake_redis_server(host, port):
+def fake_redis_server(host, port, **kwargs):
     redis = fakeredis.FakeRedis()
     return redis