diff --git a/share/sgml/man-refs.ent b/share/sgml/man-refs.ent
index 817ebac9a3..4c895938a3 100644
--- a/share/sgml/man-refs.ent
+++ b/share/sgml/man-refs.ent
@@ -233,6 +233,7 @@
 <!ENTITY man.groups.1 "<citerefentry/<refentrytitle/groups/<manvolnum/1//">
 <!ENTITY man.growisofs.1 "<citerefentry vendor='ports'/<refentrytitle/growisofs/<manvolnum/1//">
 <!ENTITY man.gs.1 "<citerefentry vendor='ports'/<refentrytitle/gs/<manvolnum/1//">
+<!ENTITY man.gtar.1 "<citerefentry/<refentrytitle/gtar/<manvolnum/1//">
 <!ENTITY man.gunzip.1 "<citerefentry/<refentrytitle/gunzip/<manvolnum/1//">
 <!ENTITY man.gzcat.1 "<citerefentry/<refentrytitle/gzcat/<manvolnum/1//">
 <!ENTITY man.gzexe.1 "<citerefentry/<refentrytitle/gzexe/<manvolnum/1//">