dovecot - Aug 2003 - error in config file?

When I start dovecot I am getting an error about the ocnfig file. 

watson:~# /etc/init.d/dovecot start
Starting mail server: dovecotFatal: Error in configuration file
/etc/dovecot.conf line 185: Missing value

So I look int /etc/dovecot.conf and line 185 is

mbox:~/mail/:INBOX=/var/mail/%u/

Which seems like valid syntax according to the docs.
I am using dovecot 0.99.10-2

On Thursday, Aug 14, 2003, at 23:36 Europe/Helsinki, Robert S. Jagger 
wrote:
> So I look int /etc/dovecot.conf and line 185 is
>
> mbox:~/mail/:INBOX=/var/mail/%u/
You're missing the "default_mail_env = " before it.