diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.xml b/en_US.ISO8859-1/articles/contributors/contrib.additional.xml
index ba5c7fb0f8..b1357d733d 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.xml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.xml
@@ -9324,6 +9324,11 @@
 	<email>ks@itp.ac.ru</email></para>
     </listitem>
 
+    <listitem>
+      <para>Sergey Kozlov
+	<email>kozlov.sergey.404@gmail.com</email></para>
+    </listitem>
+
     <listitem>
       <para>Sergey Lyubka
 	<email>valenok@gmail.com</email></para>