A folding top clamp for a vehicle has a connecting-link-controlled locking hook which can be displaced by guiding devices from a closed position to an open position. The locking hook interacts with at least one hook guide which is in an operative connection with a motor gearing unit. A folding top clamp having a simple structure and a compact construction is provided in that the motor gearing unit extends only on a longitudinal side of the locking hook and has an electric motor oriented transversely with respect to a longitudinal center plane of the vehicle, which electric motor interacts by way of a triple-geared-down gearing unit with a hook guide of the locking hook.