diff --git a/doc/install.mdwn b/doc/install.mdwn
index 9eb8bbacf7..a531015782 100644
--- a/doc/install.mdwn
+++ b/doc/install.mdwn
@@ -16,6 +16,7 @@ To build and use git-annex, you will need:
   (or uuidgen from util-linux)
 * `xargs`: <http://savannah.gnu.org/projects/findutils/>
 * `rsync`: <http://rsync.samba.org/>
+* `curl` : <http://http://curl.haxx.se/> (optional, but recommended)
 * `sha1sum`: <ftp://ftp.gnu.org/gnu/coreutils/> (optional, but recommended)
 * Then just [[download]] git-annex and run: `make; make install`