Holiday worked hours not included in OT weighted rate

When an employee uses holiday worked time type it is not included in the hours used to calculate the OT wage. For example, employee has 8 hours of holiday worked, and 46 hours of regular time worked. The OT weighted average rate should be based on all 54 hours, but it is only using 46 hours, causing the rate to be too high. How do I include the holiday hours in the calculation for OT rate?