diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index 1293bbf288..3dff83d4a6 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -2826,6 +2826,11 @@
 	<email>csgr@alpha.ru.ac.za</email></para>
     </listitem>
 
+    <listitem>
+      <para>Geoffrey Mainland
+        <email>mainland@apeiron.net</email></para>
+    </listitem>
+		      
     <listitem>
       <para>Geoffroy Rivat
 	<email>grivat@sicfa.net</email></para>