iOS - viewForFooterInSection sticking to bottom of UITableView

I have a UITableView with 3 sections. Each of them have a footer that I've added using viewForFooterInSection. The problem I'm having is that when I scroll the tableview down, the footer sticks to the bottom of the screen, and doesn't scroll like the rest of the cells. Does anyone know how to make it so the footer almost acts like a cell, and scrolls along with the rest of the table? Thanks!