diff --git a/xep.ent b/xep.ent
index cbe170aa..3bd13a31 100644
--- a/xep.ent
+++ b/xep.ent
@@ -509,6 +509,7 @@ THE SOFTWARE.
 <!ENTITY rfc3552 "<span class='ref'><link url='http://tools.ietf.org/html/rfc3552'>RFC 3552</link></span> <note>RFC 3552: Guidelines for Writing RFC Text on Security Considerations &lt;<link url='http://tools.ietf.org/html/rfc3552'>http://tools.ietf.org/html/rfc3552</link>&gt;.</note>" >
 <!ENTITY rfc3555 "<span class='ref'><link url='http://tools.ietf.org/html/rfc3555'>RFC 3555</link></span> <note>RFC 3555: MIME Type Registration of RTP Payload Formats &lt;<link url='http://tools.ietf.org/html/rfc3555'>http://tools.ietf.org/html/rfc3555</link>&gt;.</note>" >
 <!ENTITY rfc3605 "<span class='ref'><link url='http://tools.ietf.org/html/rfc3605'>RFC 3605</link></span> <note>RFC 3605: Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP) &lt;<link url='http://tools.ietf.org/html/rfc3605'>http://tools.ietf.org/html/rfc3605</link>&gt;.</note>" >
+<!ENTITY rfc3629 "<span class='ref'><link url='http://tools.ietf.org/html/rfc3629'>RFC 3629</link></span> <note>RFC 3629: UTF-8, a transformation format of ISO 10646 &lt;<link url='http://tools.ietf.org/html/rfc3629'>http://tools.ietf.org/html/rfc3629</link>&gt;.</note>" >
 <!ENTITY rfc3711 "<span class='ref'><link url='http://tools.ietf.org/html/rfc3711'>RFC 3711</link></span> <note>RFC 3711: The Secure Real-time Transport Protocol (SRTP) &lt;<link url='http://tools.ietf.org/html/rfc3711'>http://tools.ietf.org/html/rfc3711</link>&gt;.</note>" >
 <!ENTITY rfc3744 "<span class='ref'><link url='http://tools.ietf.org/html/rfc3744'>RFC 3744</link></span> <note>RFC 3744: Web Distributed Authoring and Versioning (WebDAV) Access Control Protocol &lt;<link url='http://tools.ietf.org/html/rfc3744'>http://tools.ietf.org/html/rfc3744</link>&gt;.</note>" >
 <!ENTITY rfc3749 "<span class='ref'><link url='http://tools.ietf.org/html/rfc3749'>RFC 3749</link></span> <note>RFC 3749: Transport Layer Security Protocol Compression Methods &lt;<link url='http://tools.ietf.org/html/rfc3749'>http://tools.ietf.org/html/rfc3749</link>&gt;.</note>" >