diff --git a/en_US.ISO8859-1/share/sgml/authors.ent b/en_US.ISO8859-1/share/sgml/authors.ent
index 2c74750d95..1cab1fe97e 100644
--- a/en_US.ISO8859-1/share/sgml/authors.ent
+++ b/en_US.ISO8859-1/share/sgml/authors.ent
@@ -214,6 +214,8 @@
 
 <!ENTITY a.erich "Eric L. Hernes <email>erich@FreeBSD.org</email>">
 
+<!ENTITY a.erwin "Erwin Lansing <email>erwin@FreeBSD.org</email>">
+
 <!ENTITY a.fanf "Tony Finch <email>fanf@FreeBSD.org</email>">
 
 <!ENTITY a.fenner "Bill Fenner <email>fenner@FreeBSD.org</email>">