Need help from someone who has installed headliner in a 64-66 Dart

The headliner was already gone from my Dart when I bought it and I'm having a problem getting the bows to stay where they are supposed to be when i stretch it.My question is I was wondering if there is some kind of clip that goes in the recess in the pic that holds the bow in its proper position or am I just not doing something right.Any help would be appreciated.