diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index eee680b3c2..d0ffb7f03b 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -1565,6 +1565,11 @@
 	<email>cgd@postgres.berkeley.edu</email></para>
     </listitem>
 
+    <listitem>
+      <para>Christopher Illies
+	<email>christopher.illies@ki.se</email></para>
+    </listitem>
+
     <listitem>
       <para>Christopher K. Davis
 	<email>ckd-freebsd@ckdhr.com</email></para>