diff --git a/tests/test_objects.py b/tests/test_objects.py
index aaeb6ebcf9804b7047545fdfd8d6f92b722d16e9..e3a109d0ef84031ec3b61bed2fbebc59d73a8f50 100644
--- a/tests/test_objects.py
+++ b/tests/test_objects.py
@@ -26,5 +26,5 @@ class TestObjects(unittest.TestCase):
         empty_p_msg = MessageProperties()
         ce_p_msg = MessageProperties(content_encoding=b'wtf')
 
-        self.assertIsNone(empty_p_msg.get('content_encoding'))
-        self.assertEquals(ce_p_msg.get('content_encoding', b'wtf'))
+        self.assertIsNone(empty_p_msg.get('content_encoding'), None)
+        self.assertEquals(ce_p_msg.get('content_encoding', b'wtf'), b'wtf')