Then the amended return is only for the difference you get back or owe. Make sure the original refund you got shows up on line 18.
Go by the actual 1040X. Line 18 should be your original refund amount and line 22 should be your additional refund. If you paid on your original return it will be on line 16. If there is an amount owed with the amendment, it will be on line 20.
