can't upgrade apache tomcat package, complains about tomcat user

[Eric Haszlakiewicz <erh%nimenees.com@localhost>]

I get this error when trying to upgrade an installation of Apache Tomcat:

installing apache-tomcat-6.0.41...
===========================================================================
The following users need to be created for apache-tomcat-6.0.41:

        tomcat (uid = 1076): tomcat, /usr/pkg/share/tomcat, /bin/sh

===========================================================================
pkg_install warnings: 1, errors: 1
pkg_install error log can be found in /var/db/pkgin/pkg_install-err.log

but I already have a tomcat user, although with a different uid. Why is 
this complaining?
This is using the standard binary packages from 
http://ftp.netbsd.org/pub//pkgsrc/packages/NetBSD/i386/6.1.4/

Eric