diff --git a/product/ERP5/tests/testCRM.py b/product/ERP5/tests/testCRM.py
index 8dfdf3b43b9f50144dcb7c88efd901237a06dddf..6eba62a4d127fd375f8664aaf8eb0c441cbcabce 100644
--- a/product/ERP5/tests/testCRM.py
+++ b/product/ERP5/tests/testCRM.py
@@ -526,7 +526,6 @@ class TestCRMMailIngestion(BaseTestCRM):
     self.assertEquals('Hello,\nContent of the mail.\n', str(new_event.getTextContent()))
     self.assertEquals('Mail Message', new_event.getPortalType())
     self.assertEquals('text/plain', new_event.getContentType())
-    self.assertEquals('message/rfc822', new_event._baseGetContentType())
     # check if parsing of metadata from content is working
     content_dict = {'source_list': ['person_module/sender'],
                     'destination_list': ['person_module/me',