diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index ea4d689c18..ccc149b1a1 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -7391,6 +7391,11 @@
 	<email>pvh@wfeet.za.net</email></para>
     </listitem>
 
+    <listitem>
+      <para>Petr Macek
+	<email>pm@kostax.cz</email></para>
+    </listitem>
+
     <listitem>
       <para>Petr Rehor
 	<email>prehor@gmail.com</email></para>