--- a/mercurial/configitems.py	Wed Oct 11 04:14:44 2017 +0200
+++ b/mercurial/configitems.py	Wed Oct 11 04:15:08 2017 +0200
@@ -733,6 +733,9 @@
 coreconfigitem('web', 'contact',
     default=None,
 )
+coreconfigitem('web', 'deny_push',
+    default=list,
+)
 coreconfigitem('web', 'accesslog',
     default='-',
 )