diff --git a/README.md b/README.md
index ff8bf4b..0ad8747 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ Requirements
 You will need [Redis](http://redis.io), [Postgres](http://postgresql.org), python, pip and develpment libraries (for libpq, libxml2 and libxslt) to run the full setup.
 For example, on Ubuntu:
     
-    sudo aptitude install postgresql redis-server python-pip libpq-dev libxml2-dev libxslt-dev python-dev
+    sudo aptitude install postgresql redis-server python-pip libpq-dev libxml2-dev libxslt-dev libevent-dev python-dev
 
 Installing for development
 --------------------------