diff --git a/xep.ent b/xep.ent
index 20e9ba03..5394e745 100644
--- a/xep.ent
+++ b/xep.ent
@@ -1239,3 +1239,4 @@ IANA Service Location Protocol, Version 2 (SLPv2) Templates</link></span> <note>
 <!ENTITY xep0309 "<span class='ref'><link url='http://xmpp.org/extensions/xep-0309.html'>Service Directories</link></span> <note>XEP-0309: Service Directories &lt;<link url='http://xmpp.org/extensions/xep-0309.html'>http://xmpp.org/extensions/xep-0309.html</link>&gt;.</note>" >
 <!ENTITY xep0310 "<span class='ref'><link url='http://xmpp.org/extensions/xep-0310.html'>Presence State Annotations</link></span> <note>XEP-0310: Presence State Annotations &lt;<link url='http://xmpp.org/extensions/xep-0310.html'>http://xmpp.org/extensions/xep-0310.html</link>&gt;.</note>" >
 <!ENTITY xep0311 "<span class='ref'><link url='http://xmpp.org/extensions/xep-0311.html'>MUC Fast Reconnect</link></span> <note>XEP-0311: MUC Fast Reconnect &lt;<link url='http://xmpp.org/extensions/xep-0311.html'>http://xmpp.org/extensions/xep-0311.html</link>&gt;.</note>" >
+<!ENTITY xep0312 "<span class='ref'><link url='http://xmpp.org/extensions/xep-0312.html'>PubSub Since</link></span> <note>XEP-0312: PubSub Since &lt;<link url='http://xmpp.org/extensions/xep-0312.html'>http://xmpp.org/extensions/xep-0312.html</link>&gt;.</note>" >