Deductions & credits

i sold a house and bought another in june.  i received 2 1098's, 1 for each mortgage.  The worksheet added both mortgage amounts together as if both amounts were outstanding all year.   so this sum became the average outstanding loan amount thus massively limiting my interest deduction.  the sum should have been divided by 2 since each loan was o/s for 1/2 the year.  how can i override that?