diff --git a/test/test_tosca_parser_e2e.py b/test/test_tosca_parser_e2e.py
index 5e1f916..a4c8e29 100644
--- a/test/test_tosca_parser_e2e.py
+++ b/test/test_tosca_parser_e2e.py
@@ -220,4 +220,4 @@
         with self.assertRaises(Exception) as e:
             parser.execute()
 
-        self.assertEqual(e.exception.message, "[XOS-TOSCA] Model Site:Open Networking Lab has property 'must-exist' but cannot be found")
+        self.assertEqual(e.exception.message.message, "[XOS-TOSCA] Model Site:Open Networking Lab has property 'must-exist' but cannot be found")