diff --git a/share/sgml/man-refs.ent b/share/sgml/man-refs.ent
index a0ea3fdd02..7f387dd07a 100644
--- a/share/sgml/man-refs.ent
+++ b/share/sgml/man-refs.ent
@@ -2931,6 +2931,7 @@
 <!ENTITY man.fea.4 "<citerefentry/<refentrytitle/fea/<manvolnum/4//">
 <!ENTITY man.fpa.4 "<citerefentry/<refentrytitle/fpa/<manvolnum/4//">
 <!ENTITY man.fxp.4 "<citerefentry/<refentrytitle/fxp/<manvolnum/4//">
+<!ENTITY man.geom.4 "<citerefentry/<refentrytitle/geom/<manvolnum/4//">
 <!ENTITY man.gif.4 "<citerefentry/<refentrytitle/gif/<manvolnum/4//">
 <!ENTITY man.gsc.4 "<citerefentry/<refentrytitle/gsc/<manvolnum/4//">
 <!ENTITY man.gusc.4 "<citerefentry/<refentrytitle/gusc/<manvolnum/4//">