Seat back Rattle

[arbop]

One side of the seat back of my V70's rear seat is beginning to rattle. The other side does not rattle, and has no looseness or play in the latch assembly. The side that rattles does have some play in it. To be sure, the latch is tight to the seat back. Is there any way to adjust the latch to make the seat back latch engage the part mounted to the car better? I can't see any way, but hoping there is. If it can be adjusted, how would I go about it?

Thanks