diff --git a/README.rdoc b/README.rdoc
index 107db0f9..81dd248b 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -12,10 +12,14 @@ Celerity and Selenium support built in.
 
 == Install:
 
-Capybara is hosted on Gemcutter, install it with:
+Install as a gem:
 
     sudo gem install capybara
 
+On OSX you may have to install libffi, you can install it via MacPorts via:
+
+    sudo port install libffi
+
 == Development:
 
 * Source hosted at {GitHub}[http://github.com/jnicklas/capybara].