sunroof headliner problem

[TM]

Listers,
I have a problem with the sunroof in my 200q. The "headliner" piece
that is supposed to be attached to the sunroof and opens up when you
put the sunroof in tilt mode has come loose. I cannot see any sort
of attachment for this piece.

How is the tilt-open flap supposed to attach to the sunroof assembly?
Not the metal bits but the cardboard headliner piece.

Taka
'91 200q
'86 5ktq (for sale)