diff --git a/tests/Settings/TestGlobalStack.py b/tests/Settings/TestGlobalStack.py
index c501e6aee0..89816ed678 100644
--- a/tests/Settings/TestGlobalStack.py
+++ b/tests/Settings/TestGlobalStack.py
@@ -48,7 +48,7 @@ class MockContainer:
     propertyChanged = unittest.mock.MagicMock()
 
 ##  Fake container registry that always provides all containers you ask of.
-@pytest.fixture()
+@pytest.yield_fixture()
 def container_registry():
     registry = unittest.mock.MagicMock()