mib file for squid

OpenView complain when I try to load mib.txt which was included on
squid-2.3STABLE distribution.
It makes me have to modify the mib.txt as below

-----------------
# diff /usr/local/squid/etc/mib.txt the-fixed-one.txt
811c811
> cacheClientAddr IpAddress

---
<                       cacheClientAddr         IpAddress,
-----------------
I'm not familiar with mib definition file, but I think that there was an
error on default mib.txt.
My old problem still exist, anyway.. ;(
when i do snmpwalk on my cache, it was core dumped.
-denisz-