diff --git a/tests/notifications-python-client/test_notifications.py b/tests/notifications-python-client/test_notifications.py
index 51d5778d2..3d898c703 100644
--- a/tests/notifications-python-client/test_notifications.py
+++ b/tests/notifications-python-client/test_notifications.py
@@ -7,7 +7,7 @@ from notifications_python_client.notifications import NotificationsAPIClient
 
 @pytest.fixture
 def client():
-    client = NotificationsAPIClient()
+    client = NotificationsAPIClient("api-key")
     client.post = Mock()
     client.get = Mock()
     client._perform_request = Mock()