diff --git a/tests/app/main/views/test_service_settings.py b/tests/app/main/views/test_service_settings.py
index ffbe82db8..b40794559 100644
--- a/tests/app/main/views/test_service_settings.py
+++ b/tests/app/main/views/test_service_settings.py
@@ -2871,7 +2871,7 @@ def test_update_service_data_retention_return_validation_error_for_negative_days
     page = BeautifulSoup(response.data.decode('utf-8'), 'html.parser')
     error_message = page.find('span', class_='error-message').text.strip()
     assert error_message == 'Must be between 3 and 90'
-    mock_get_service_data_retention_by_id.called
+    assert mock_get_service_data_retention_by_id.called
     assert not mock_update_service_data_retention.called