Active + Resting calories vs Active only with MyFitnessPal

I recently upgraded from an Edge 820 to an Edge 1040, and I use Garmin Connect to export Calorie information to MyFitnessPal. My old Edge 820 used to log only active calories, which worked well with MyFitnessPal. But the new Edge 1040 logs both active and resting calories and exports the total to MyFitnessPal. This screws up the computation, as MyFitnessPal already counts resting calories. Do you have any idea how to fix this?