diff --git a/openerp/tests/test_mail.py b/openerp/tests/test_mail.py
index 3098a94c5f1..edf5571ca20 100644
--- a/openerp/tests/test_mail.py
+++ b/openerp/tests/test_mail.py
@@ -176,7 +176,6 @@ class TestCleaner(unittest2.TestCase):
         # Test5: False boolean for text must return empty string
         new_html = html_email_clean(False)
         self.assertEqual(new_html, '', 'html_email_cleaner did not change a False (boolean) in an empty string.')
-        self.assertEqual(type(new_html), type(''), 'html_email_cleaner did not change a False (boolean) in an empty string.')
 
 class TestHtmlTools(unittest2.TestCase):
     """ Test some of our generic utility functions about html """