corduroygt

One of my rear shelf supports fell out, it's this rubber part that supports the rear shelf that's attached to the inside of the rear tailgate.
https://acura.oempartsonline.com/oem...-84455stka00zb

There are two of these, one came out on my car, I collected it from the trunk, but I cant put it back in it's impossible to push it in and have it stay in place.

Anyone knows how to put it back?