How to Add Form 8812

How do I add form 8812 while filing my taxes with TurboTax? I received a letter from the IRS stating I need to fill out form 8812 to get the 2nd half of my Child Tax Credit (received the 1st half in advanced payments), but when asked how much I received in advanced payments, it deducts the amount from my expected federal refund even though it shouldn't.