diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 6c9f2f1..a4ddd6e 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -1267,9 +1267,7 @@ Test cases
       :ref:`assert methods <assert-methods>` will be appended to the end of the
       normal failure message.  The normal messages contain useful information
       about the objects involved, for example the message from assertEqual
-      shows you the repr of the two unequal objects. Setting this attribute
-      to ``True`` allows you to have a custom error message in addition to the
-      normal one.
+      shows you the repr of the two unequal objects.
 
       This attribute defaults to ``True``. If set to False then a custom message
       passed to an assert method will silence the normal message.