diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index 8b5616ef1c..f9053d0e4a 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -6100,6 +6100,11 @@
         <email>sec@42.org</email></para>
     </listitem>
     
+    <listitem>
+      <para>Stefan Schwarzer
+        <email>sschwarzer@sschwarzer.net</email></para>
+    </listitem>
+
     <listitem>
       <para>Steffen Mazanek
         <email>steffen.mazanek@unibw-muenchen.de</email></para>