diff --git a/tests/workspacemanager_presenter_ads_test.py b/tests/workspacemanager_presenter_ads_test.py
index 1c2a38f9..2dd06912 100644
--- a/tests/workspacemanager_presenter_ads_test.py
+++ b/tests/workspacemanager_presenter_ads_test.py
@@ -12,6 +12,9 @@
 
 class WorkspaceManagerPresenterTest(unittest.TestCase):
 
+    def setUp(self):
+        AnalysisDataService.clear(True)
+
     def test_ensure_that_the_ads_observer_calls_delete_handle(self):
         presenter = WorkspaceManagerPresenter(MagicMock())
         presenter.delete_handle = MagicMock()