Attachment of a curtain airbag assembly to a vehicle

A curtain airbag assembly has, for fastening purposes, at least one strap (3) attached to the airbag (1). The strap (3) is held in position by being guided through a passage behind a hanger (5) projecting in the manner of a bracket from the structural member (4) of a vehicle. The strap (3) is secured in place by being folded around at least one edge (7) of the hanger (5) and by at least one means for fastening (11; 13; 15, 16; 17; 19).