diff --git a/tests/test_fixity.py b/tests/test_fixity.py
index 689d7cb..a89d917 100644
--- a/tests/test_fixity.py
+++ b/tests/test_fixity.py
@@ -381,8 +381,8 @@ def test_scanall_handles_exceptions(_get, capsys):
 
 
 @mock.patch("requests.get")
-@mock.patch("fixity.fixity.main.session", return_value=SESSION)
-def test_main(_session, _get, monkeypatch, foobar):
+@mock.patch.object(fixity, "Session", lambda: SESSION)
+def test_main(_get, monkeypatch, foobar):
     _get.side_effect = foobar
     monkeypatch.setenv("STORAGE_SERVICE_URL", STORAGE_SERVICE_URL)
     monkeypatch.setenv("STORAGE_SERVICE_USER", STORAGE_SERVICE_USER)