<?xml version="1.0" encoding="UTF-8"?>
<xu:modifications version="1.0" xmlns:xu="http://www.xmldb.org/xupdate">
	
	<xu:append select="//address[lname &amp;= 'jekyll']/company">
		<xu:attribute name="id">555</xu:attribute>
	</xu:append>
</xu:modifications>