diff --git a/share/xml/man-refs.ent b/share/xml/man-refs.ent
index 67c846f547..6afc4b1796 100644
--- a/share/xml/man-refs.ent
+++ b/share/xml/man-refs.ent
@@ -3908,6 +3908,7 @@
 <!ENTITY man.ural.4 "<citerefentry xmlns='http://docbook.org/ns/docbook'><refentrytitle>ural</refentrytitle><manvolnum>4</manvolnum></citerefentry>">
 <!ENTITY man.urio.4 "<citerefentry xmlns='http://docbook.org/ns/docbook'><refentrytitle>urio</refentrytitle><manvolnum>4</manvolnum></citerefentry>">
 <!ENTITY man.urtw.4 "<citerefentry xmlns='http://docbook.org/ns/docbook'><refentrytitle>urtw</refentrytitle><manvolnum>4</manvolnum></citerefentry>">
+<!ENTITY man.urtwn.4 "<citerefentry xmlns='http://docbook.org/ns/docbook'><refentrytitle>urtwn</refentrytitle><manvolnum>4</manvolnum></citerefentry>">
 <!ENTITY man.usb.4 "<citerefentry xmlns='http://docbook.org/ns/docbook'><refentrytitle>usb</refentrytitle><manvolnum>4</manvolnum></citerefentry>">
 <!ENTITY man.uscanner.4 "<citerefentry xmlns='http://docbook.org/ns/docbook'><refentrytitle>uscanner</refentrytitle><manvolnum>4</manvolnum></citerefentry>">
 <!ENTITY man.uslcom.4 "<citerefentry xmlns='http://docbook.org/ns/docbook'><refentrytitle>uslcom</refentrytitle><manvolnum>4</manvolnum></citerefentry>">