diff --git a/en_US.ISO8859-1/share/sgml/authors.ent b/en_US.ISO8859-1/share/sgml/authors.ent
index dcc6f7a1a8..577e1601d0 100644
--- a/en_US.ISO8859-1/share/sgml/authors.ent
+++ b/en_US.ISO8859-1/share/sgml/authors.ent
@@ -1000,7 +1000,7 @@
 
 <!ENTITY a.rink "Rink Springer <email>rink@FreeBSD.org</email>">
 
-<!ENTITY a.rm "Ruslan Mahmatkhanov <email>rm@@FreeBSD.org</email>">
+<!ENTITY a.rm "Ruslan Mahmatkhanov <email>rm@FreeBSD.org</email>">
 
 <!ENTITY a.rmacklem "Rick Macklem <email>rmacklem@FreeBSD.org</email>">