diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Arcanist is the command-line tool for [Phabricator](http://phabricator.org).
 It allows you to interact with Phabricator installs to send code for review,
 download patches, transfer files, view status, make API calls, and various other
-things. You can read more in the [User Guide](https://secure.phabricator.com/book/phabricator/article/arcanist/)
+things. You can read more in the [User Guide](https://secure.phabricator.com/diviner/book/phabricator/article/arcanist/)
 
 For more information about Phabricator, see http://phabricator.org/.