diff --git a/README.mkd b/README.mkd
index c78e1bb6c..f52aee6dc 100644
--- a/README.mkd
+++ b/README.mkd
@@ -54,6 +54,7 @@ Requirements
 * [urwid](http://excess.org/urwid/) version 0.9.8 or newer.
 * [PIL](http://www.pythonware.com/products/pil/) version 1.1 or newer.
 * [lxml](http://lxml.de/) version 2.3 or newer.
+* [netlib](http://pypi.python.org/pypi/netlib) 0.1 or newer.
 
 The following auxiliary components may be needed if you plan to hack on
 mitmproxy: