diff --git a/tests/interfaces/openlp_core_ui/test_projectormanager.py b/tests/interfaces/openlp_core_ui/test_projectormanager.py
index d0a30522d..197c0c4a8 100644
--- a/tests/interfaces/openlp_core_ui/test_projectormanager.py
+++ b/tests/interfaces/openlp_core_ui/test_projectormanager.py
@@ -96,7 +96,7 @@ class TestProjectorManager(TestCase, TestMixin):
         self.projector_manager.bootstrap_post_set_up()
 
         # THEN: verify calls to retrieve saved projectors
-        self.assertEqual(1, self.projector_manager.load_projectors.call_count,
+        self.assertEqual(1, self.projector_manager._load_projectors.call_count,
                          'Initialization should have called load_projectors()')
 
         # THEN: Verify edit page is initialized