diff --git a/share/sgml/man-refs.ent b/share/sgml/man-refs.ent
index bc93351f44..703b0caa15 100644
--- a/share/sgml/man-refs.ent
+++ b/share/sgml/man-refs.ent
@@ -2039,6 +2039,7 @@
 <!ENTITY man.libalias.3 "<citerefentry/<refentrytitle/libalias/<manvolnum/3//">
 <!ENTITY man.libbsdxml.3 "<citerefentry/<refentrytitle/libbsdxml/<manvolnum/3//">
 <!ENTITY man.libdisk.3 "<citerefentry/<refentrytitle/libdisk/<manvolnum/3//">
+<!ENTITY man.libgeom.3 "<citerefentry/<refentrytitle/libgeom/<manvolnum/3//">
 <!ENTITY man.libmp.3 "<citerefentry/<refentrytitle/libmp/<manvolnum/3//">
 <!ENTITY man.libradius.3 "<citerefentry/<refentrytitle/libradius/<manvolnum/3//">
 <!ENTITY man.libstand.3 "<citerefentry/<refentrytitle/libstand/<manvolnum/3//">