diff --git a/tests/interfaces/openlp_core_ui/test_servicemanager.py b/tests/interfaces/openlp_core_ui/test_servicemanager.py
index fdd0a31bc..3bcf5b2b4 100644
--- a/tests/interfaces/openlp_core_ui/test_servicemanager.py
+++ b/tests/interfaces/openlp_core_ui/test_servicemanager.py
@@ -57,8 +57,8 @@ class TestServiceManager(TestCase, TestMixin):
         """
         Delete all the C++ objects at the end so that we don't have a segfault
         """
-        del self.service_manager
         del self.main_window
+        del self.service_manager
 
     def basic_service_manager_test(self):
         """