diff --git a/share/sgml/man-refs.ent b/share/sgml/man-refs.ent
index 707790458a..0a18607f2d 100644
--- a/share/sgml/man-refs.ent
+++ b/share/sgml/man-refs.ent
@@ -3370,6 +3370,7 @@
 <!ENTITY man.ng.ubt.4 "<citerefentry/<refentrytitle/ng_ubt/<manvolnum/4//">
 <!ENTITY man.ng.uni.4 "<citerefentry/<refentrytitle/ng_uni/<manvolnum/4//">
 <!ENTITY man.ng.vjc.4 "<citerefentry/<refentrytitle/ng_vjc/<manvolnum/4//">
+<!ENTITY man.ng.vlan.4 "<citerefentry/<refentrytitle/ng_vlan/<manvolnum/4//">
 <!ENTITY man.nge.4 "<citerefentry/<refentrytitle/nge/<manvolnum/4//">
 <!ENTITY man.nis.4 "<citerefentry/<refentrytitle/nis/<manvolnum/4//">
 <!ENTITY man.nmdm.4 "<citerefentry/<refentrytitle/nmdm/<manvolnum/4//">