Deductions & credits

So the form 5405 fills out and Schedule 2 shows the amount of repayment  on line 10 but when filing electronically it does not mark the 5405 as a form to file.  Last year, our tax refund was delayed because 5405 form was not submitted with the electronic submission.  How do I get form 5405 to submit electronically with the rest of the tax forms?