rain gutter trim dislodged

[deluvak]

While washing my windshield at a gas station last month, I leaned over a little too far and dislodged the plastic trim piece that runs from the rain gutter down the rightside of the windshield to the hood. As you can see from the attached photo, it is only the top portion that is no longer attached.

Any thoughts on how best to re-attach this piece?

Thanks as always,
Dan

85 300D 95,000 miles