TurboTax is erroneously assessing a penalty - Post 9/11 GI Bill vs 529 withdraw

Per IRS Pub 970, Exceptions 3.b., I should not be subject to the 10% penalty for a 529 withdraw when using the Post 9/11 GI Bill to pay for my son's education.  But, I cannot figure out how to make TurboTax remove the penalty from IRS Form 5329, line 10.  Thank you for your assistance.