diff --git a/django_mailbox/tests/test_process_email.py b/django_mailbox/tests/test_process_email.py
index a128e2c..b72e8c0 100644
--- a/django_mailbox/tests/test_process_email.py
+++ b/django_mailbox/tests/test_process_email.py
@@ -401,6 +401,7 @@ class TestProcessEmail(EmailMessageTestCase):
         msg = self.mailbox.process_incoming_message(email_object)
 
         self.assertEqual(msg.attachments.all().count(), 1)
+        self.assertNotIn('This is an attachment.', msg.text)
 
     def test_message_with_long_content(self):
         email_object = self._get_email_object(
@@ -468,4 +469,4 @@ class TestProcessEmail(EmailMessageTestCase):
 
         with gzip.open(msg.eml.name, 'rb') as f:
             self.assertEqual(f.read(),
-                             self._get_email_as_text('generic_message.eml'))
\ No newline at end of file
+                             self._get_email_as_text('generic_message.eml'))