2021 fileing, where to enter Standard Mileage Deduction on 1065

Company books did not record any mileage entries for 2021 (no cash outlay).  However, on my 1065 tax return I am reporting in the Auto & Truck expense section a line for "Standard Mileage Deduction".   Consequently, this created a Reconciling item between Book and Tax records.  I don't see a clear spot where I should enter this difference on my tax return?  Thanks in advance for the help.