Kivy listitem button with checkbox right side

At the moment when I press a button in a list item button, another list item button widget appear (AttendancelistButton) with a checkbox for each item.

The problem is that the checkbox is in the center of the button. I would like to have the checkbox at the right side for each item button.

class AttendanceListButton(ListItemButton, CheckBox):
   pass

My kv file:

<AttendanceListButton@CheckBox>:
   size_hint: (0.7, 0.7) 

Thank you in advance