diff --git a/share/sgml/man-refs.ent b/share/sgml/man-refs.ent
index 429079995f..fea84f5426 100644
--- a/share/sgml/man-refs.ent
+++ b/share/sgml/man-refs.ent
@@ -3504,6 +3504,7 @@
 <!ENTITY man.snd.es137x.4 "<citerefentry/<refentrytitle/snd_es137x/<manvolnum/4//">
 <!ENTITY man.snd.ess.4 "<citerefentry/<refentrytitle/snd_ess/<manvolnum/4//">
 <!ENTITY man.snd.gusc.4 "<citerefentry/<refentrytitle/snd_gusc/<manvolnum/4//">
+<!ENTITY man.snd.ich.4 "<citerefentry/<refentrytitle/snd_ich/<manvolnum/4//">
 <!ENTITY man.snd.maestro3.4 "<citerefentry/<refentrytitle/snd_maestro3/<manvolnum/4//">
 <!ENTITY man.snd.sbc.4 "<citerefentry/<refentrytitle/snd_sbc/<manvolnum/4//">
 <!ENTITY man.snd.solo.4 "<citerefentry/<refentrytitle/snd_solo/<manvolnum/4//">