diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.xml b/en_US.ISO8859-1/articles/contributors/contrib.additional.xml
index c9512e230c..e9a07c0a50 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.xml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.xml
@@ -265,6 +265,11 @@
       <email>mraleks@bk.ru</email></para>
   </listitem>
 
+  <listitem>
+    <para>Alessandro Sagratini
+      <email>ale_sagra@hotmail.com</email></para>
+  </listitem>
+
   <listitem>
     <para>Alex D. Chen
       <email>dhchen@elearning.nsysu.edu.tw</email></para>