A heating assembly for heating an aerosol-forming substrate is provided, including a heater including an electrically resistive heating element and a heater substrate; and a heater mount coupled to the heater, the heating element including a first portion and a second portion configured such that, when an electrical current is passed through the heating element, the first portion is heated to a higher temperature than that of the second portion, the first portion of the heating element being disposed on a heating area of the heater substrate and the second portion of the heating element being disposed on a holding area of the heater substrate, the heater mount being fixed to the holding area of the heater substrate, and the second portion of the heating element being longer than the first portion of the heating element.