diff --git a/share/sgml/man-refs.ent b/share/sgml/man-refs.ent
index e86d454aa4..762b130d32 100644
--- a/share/sgml/man-refs.ent
+++ b/share/sgml/man-refs.ent
@@ -3656,6 +3656,7 @@
 <!ENTITY man.pim6sd.conf.5 "<citerefentry/<refentrytitle/pim6sd.conf/<manvolnum/5//">
 <!ENTITY man.printcap.5 "<citerefentry/<refentrytitle/printcap/<manvolnum/5//">
 <!ENTITY man.procfs.5 "<citerefentry/<refentrytitle/procfs/<manvolnum/5//">
+<!ENTITY man.procmailex.5 "<citerefentry/<refentrytitle/procmailex/<manvolnum/5//">
 <!ENTITY man.protocols.5 "<citerefentry/<refentrytitle/protocols/<manvolnum/5//">
 <!ENTITY man.publickey.5 "<citerefentry/<refentrytitle/publickey/<manvolnum/5//">
 <!ENTITY man.pw.conf.5 "<citerefentry/<refentrytitle/pw.conf/<manvolnum/5//">