as i was bolting on my lock nuts on my car to protect my rim... i noticed the cross wrench i used scratched my rim

and it took a chunk out but it wasnt bad honestly, liek its not like it looked like it got curbed or some s***.. but i was wondering if that small little area on my rim can rust? i mean i have Enkei Razr rims (
http://www.enkei.com/razr.html) i mean do you think over time it would rust ? but i searched around and the enkei wheels are made up of composite alloy... and if it does or will rust, my friend owns a rim shop that can fix rims in any condition but it would cost alot of $$ you think i would need to fix it ? for one little scratch ... =\