diff --git a/en_US.ISO8859-1/articles/contributors/article.sgml b/en_US.ISO8859-1/articles/contributors/article.sgml
index 716558a047..2cadf0b8a6 100644
--- a/en_US.ISO8859-1/articles/contributors/article.sgml
+++ b/en_US.ISO8859-1/articles/contributors/article.sgml
@@ -5546,6 +5546,10 @@
         <para>R. Kym Horsell</para>
       </listitem>
 
+      <listitem>
+        <para>Radoslav Vasilev <email>rvasilev@uni-svishtov.bg</email></para>
+      </listitem>
+
       <listitem>
         <para>Ralf Friedl <email>friedl@informatik.uni-kl.de</email></para>
       </listitem>