diff --git a/share/sgml/man-refs.ent b/share/sgml/man-refs.ent
index 9694940ea1..5e1c8d8458 100644
--- a/share/sgml/man-refs.ent
+++ b/share/sgml/man-refs.ent
@@ -3386,6 +3386,7 @@
 <!ENTITY man.rp.4 "<citerefentry/<refentrytitle/rp/<manvolnum/4//">
 <!ENTITY man.rue.4 "<citerefentry/<refentrytitle/rue/<manvolnum/4//">
 <!ENTITY man.sa.4 "<citerefentry/<refentrytitle/sa/<manvolnum/4//">
+<!ENTITY man.safe.4 "<citerefentry/<refentrytitle/safe/<manvolnum/4//">
 <!ENTITY man.sb.4 "<citerefentry/<refentrytitle/sb/<manvolnum/4//">
 <!ENTITY man.sbc.4 "<citerefentry/<refentrytitle/sbc/<manvolnum/4//">
 <!ENTITY man.sbni.4 "<citerefentry/<refentrytitle/sbni/<manvolnum/4//">