Fastening Strips to Cockpit Apron? WD12 Hybrid

Hello, I’m building a Wood Duck 12 Hybrid from plans.  I just installed the King Plank stips down the center of the boat.  Should the strips be fastened to the apron, or is it just a dry butt joint?  I’m thinking it should be connected with glue or epoxy, but I don’t really know.  If it’s not glued, when I remove the top won’t the apron just fall out?  Thanks for everyones help.   

Yes you should glue the strips to the apron.  I used the same glue as I used for all the strips. ( Tight Bond original )

Lou