diff --git a/doc/install/OSX.mdwn b/doc/install/OSX.mdwn
index e01ed93f23..fba44e2a46 100644
--- a/doc/install/OSX.mdwn
+++ b/doc/install/OSX.mdwn
@@ -37,7 +37,7 @@ the app for OSX Lion.
 <pre>
 brew update
 brew install haskell-platform git ossp-uuid md5sha1sum coreutils libgsasl gnutls libidn libgsasl pkg-config libxml2
-brew link libxml2
+brew link libxml2 --force
 cabal update
 mkdir $HOME/bin
 PATH=$HOME/bin:$PATH