diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index ebb303b26f..115b44c163 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -7127,6 +7127,11 @@
 	<email>PETERS@staidan.qld.edu.au</email></para>
     </listitem>
 
+    <listitem>
+      <para>Peter Thoenen
+        <email>peter.thoenen@yahoo.com</email></para>
+    </listitem>
+
     <listitem>
       <para>Peter W. Schmiedeskamp
 	<email>pschmied@qwest.net</email></para>