loose earcup rotation fix needed

Hi, the bracket that allows the headphone cups to rotate seems to be way too loose, to the point of when i try to put them in the transmitter dock or pick them up to put them on, the earcups just seem to have a mind of they’re own and will twist/rotate with the slightest hint of the headphones being moved. is there anyway to tighten this up, i’ve had the headphones apart to replace the battery (thanks for the tutorial it really helped) so i don’t mind taking them apart