The gasbag retaining module has a housing (10) containing an inflation device and a folded gasbag (50) with fixing sector round the inflation aperture fixed to the housing. The inflation device consists of a bottle-like compressed gas container (12). The fixing sector of the gas bag has a fixing frame (40). The housing has a common cylindrical receiving part (11) into which the compressed gas container is pushed axially. There are two fixing strips (14) running out radially from the receiving part. The fixing frame is between them. The receiving part has at least one through aperture.