A dose counter, the counter having a base body, with a rotary counter element assembled in the base body on a pin forming the axis of rotation. The rotary counter element co-operating with an actuator member adapted to cause the rotary counter element to turn each time the actuator member is actuated. The actuator member including a fastener for fastening to the base body (460) and arranged on a first side of the pin, and a substantially rigid support portion arranged on a second side of said pin. The support portion supporting an actuator element so that, on each actuation, the actuator element is moved in translation. The support portion is connected to the fastener via an elastically-deformable portion that surrounds the pin. The support portion is extended towards the pin by a substantially-rectilinear flexible branch that supports a lug adapted to co-operate with the counter element on each actuation.
