How to register full url in Squid3 ubuntu?

I have installed Squid3 proxy on ubuntu server and everything is fine, but when I check the log file Squid logs the url, but if the url has (?) It logs only in what before? mark and omit what follows.

Exp if I tried to access this url: http://www.youtube.com/results?search_query=bmw

squid will log it as: http://www.youtube.com/results ?

My question here is how can I configure squid3 to register a full url?

Thanks, Yousef