diff --git a/pep-0374.txt b/pep-0374.txt
index cb2b7431b..c10c1af21 100644
--- a/pep-0374.txt
+++ b/pep-0374.txt
@@ -485,6 +485,11 @@ hg
   hg outgoing -p > additional-fixes.patch
   # Upload patch to bugs.python.org
 
+While ``hg outgoing`` does not have the flag for it, most Mercurial
+commands support git's extended patch format through a ``--git``
+command. This can be set in one's ``.hgrc`` file so that all commands
+that generate a patch use the extended format.
+
 
 git
 '''