diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index ab3ea65ab6..2b9522ebc0 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -7440,6 +7440,11 @@
 	<email>rch@richard.eu.org</email></para>
     </listitem>
 
+    <listitem>
+      <para>Ricardo A. Reis
+	<email>ricardo.areis@gmail.com</email></para>
+    </listitem>
+
     <listitem>
       <para>Riccardo Veraldi
 	<email>veraldi@cs.unibo.it</email></para>