No difference is seen when trying to make camera focus on FPS head

I’m trying to make this addition to a camera script by making it move WITH the head.
Here it is, but it seems to not work.

game.Workspace.CurrentCamera.CameraSubject = game.Players:GetPlayerFromCharacter(script.Parent.Parent).Character.Head    

What are any solutions to this?

It’s for R15.

Could you show the screenshot of the problem?