diff --git a/README b/README
index cc59b3e3..fd6a7f64 100644
--- a/README
+++ b/README
@@ -60,6 +60,7 @@ How to compile and install on Mac OSX 10.6
 * brew install pkg-config libao
 * make
 * perl -MCPAN -e 'install Crypt::OpenSSL::RSA'
+* perl -MCPAN -e 'install IO::Socket::INET6'
 * perl shairport.pl
 
 OSX 10.5 only bundles perl 5.8, which won't work with shairport. After getting a update