mod-security2 and awstats = error 500

[Wut]

How ?

I'm edit /etc/modsecurity2/modsecurity_crs_30_http_policy.conf and comment the following line out :

# Restrict file extension
#
# TODO the list of file extensions below are virtually always considered unsafe
# and not in use in any valid program. If your application uses one of
# these extensions, please remove it from the list of blocked extensions.
# You may need to use ModSecurity Core Rule Set Templates to do so, otherwise
# comment the whole rule.
#
SecRule REQUEST_BASENAME "\.(?:c(?:o(?:nf(?:ig)?|m)|s(?:proj|r)?|dx|er|fg|md)|p(?:rinter|ass|db|ol|wd)|$
"phase:2,t:none,t:urlDecodeUni, t:lowercase, deny,log,auditlog,status:500,msg:'URL file extension is$

Are there any better solution ? like whitelist for awstats.pl or something