diff --git a/INSTALL b/INSTALL
index 6c3bf31b6..f7eb6aaed 100644
--- a/INSTALL
+++ b/INSTALL
@@ -43,6 +43,8 @@ iconv (if not part of your ruby distribution)
 Mongrel
 Mongrel_cluster
 
+Additionally on Ubuntu:
+libopenssl-ruby1.8
 
 ----------------
 -Ruby libraries-