Incorrectly billed for personal mileage of company car

I have a company car. Each month I have to report personal and business mileage. Our closing month just occurred and the fleet company did not report the last month for me. So I am to be billed 12% personal use of my company car lease for the year for the 1 month of non reporting. This amounts to about $900 dollars. I did not use this for personal use at all this year. My company is telling me that I need to correct this during my taxes. I am unsure of how to do this. Is there anyway to recapture this complete amount? I am afraid that because I typically do a standard deduction this will be lost.