A head lining of an automobile is formed with a notched portion which is surrounded by a forward corresponding portion of the head lining to be brought into contact with a front surface of a pillar, and a backward corresponding portion of the head lining to be brought into contact with a rear surface of the pillar. The head lining is further formed with first slits on the head lining so that the forward corresponding portion and backward corresponding portion are brought into contact with the front surface and rear surface of the pillar in such a manner that the forward corresponding portion and backward corresponding portion are curved downwardly. The forward corresponding portion and backward corresponding portion are formed so as to be extended from a position where they are brought into contact with the front surface and rear surface of the pillar.