diff --git a/dev-requirements.txt b/dev-requirements.txt
index 84c7697..f706c46 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1 +1,2 @@
 tox>=1.4,<1.5
+epydoc>=3.0,<3.1
diff --git a/paramiko/__init__.py b/paramiko/__init__.py
index 099314e..b305d9c 100644
--- a/paramiko/__init__.py
+++ b/paramiko/__init__.py
@@ -46,6 +46,8 @@ Paramiko is written entirely in python (no C or platform-dependent code) and is
 released under the GNU Lesser General Public License (LGPL).
 
 Website: U{https://github.com/paramiko/paramiko/}
+
+Mailing list: U{paramiko@librelist.com<mailto:paramiko@librelist.com>}
 """
 
 import sys