diff --git a/README.md b/README.md
index 512ab57..e3bc97c 100755
--- a/README.md
+++ b/README.md
@@ -98,6 +98,7 @@ Linux packages needed for install: python, python-dev, libenchant-dev, libenchan
 CloudBot runs on **Python** *2.7.x*. It is developed on **Ubuntu** *12.04* with **Python** *2.7.3*.
 
 It **requires the Python module** `lXML`, and `Enchant` is needed for the spellcheck plugin.
+It also **requires** `pydns` and is needed for SRV record lookup for the mctools plugin.
 
 The programs `daemon` or `screen` are recomended for the launcher to run optimaly.