diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index ce49c28a25..76184cce60 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -5325,6 +5325,11 @@
 	<email>mwhite+@CMU.EDU</email></para>
     </listitem>
 
+    <listitem>
+      <para>Matteo Riondato
+	<email>matteo@FreeBSD.org</email></para>
+    </listitem>
+
     <listitem>
       <para>Matthew Braithwaite
 	<email>mab@red-bean.com</email></para>