[squid-users] More then one url_rewrite_program line

when adding a second url_rewrite_program i get followinfg error

FATAL: Bungled squid.conf line 166: url_rewrite_program /usr/sbin/squidclamav
Squid Cache (Version 2.6.STABLE12): Terminated abnormally.

Is it possible to use squidguard and suidclamav the same time ?

This is my setup:

url_rewrite_program /usr/bin/squidGuard
url_rewrite_children 10

url_rewrite_program /usr/sbin/squidclamav
url_rewrite_children 15
url_rewrite_access deny localhost # prevent loops
url_rewrite_access deny SSL_ports # SSL URLs cannot be scanned

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