diff --git a/Lib/asynchat.py b/Lib/asynchat.py
index f4ba361..de26ffa 100644
--- a/Lib/asynchat.py
+++ b/Lib/asynchat.py
@@ -48,6 +48,14 @@
 import asyncore
 from collections import deque
 
+from warnings import warn
+warn(
+    'The asynchat module is deprecated. '
+    'The recommended replacement is asyncio',
+    DeprecationWarning,
+    stacklevel=2)
+
+
 
 class async_chat(asyncore.dispatcher):
     """This is an abstract class.  You must derive from this class, and add