1099-Q

I have 2 children in college and each has a 529 plan.  I got two 1099-Q forms about the funds I took from those accounts to pay for qualified expenses.  But when I entered them into TurboTax, my refund went down $7000.  Those were qualified expenses and shouldn't have been taxed, but obviously TurboTax thinks they should be.  Any advice about how to fix this?