diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index dbf8401a7d..7a37824a73 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -4152,6 +4152,11 @@
 	<email>charly@fachschaften.tu-muenchen.de</email></para>
     </listitem>
 
+    <listitem>
+      <para>Jan Henrik Sylvester
+	<email>me@janh.de</email></para>
+    </listitem>
+
     <listitem>
       <para>Jan Jungnickel
 	<email>Jan@Jungnickel.com</email></para>