A method for applying an adhesive on a wrapping band of a smoking article, the smoking article comprising, in particular, a segment of filter material and a segment of smokable material, wherein it comprises the step of: moving the wrapping band along a feed direction, where the wrapping band has a longitudinal direction of extension, a first surface and a second surface opposed to the first surface; the wrapping band comprising a first plurality of portions having a first thickness and a second plurality of portions having a second thickness greater than the first thickness, wherein the portions of the first plurality and the portions of the second plurality are disposed alternately with each other along the direction of extension; the method is characterized in that it comprises the following steps: moving at least one nozzle, which has a delivery end, and/or the wrapping band towards/away from each other between a first position, where the delivery end of the nozzle and the second surface of the wrapping band are at a first distance which is less than or equal to the second thickness, and a second position, where the delivery end of the nozzle and the second surface of the wrapping band are at a second distance which is greater than the second thickness; delivering an adhesive on the first surface of the wrapping band through at least one nozzle, when the nozzle and the wrapping band are at the first position and the delivery end of the nozzle faces a portion of the first plurality. moving the wrapping band along a feed direction, where the wrapping band has a longitudinal direction of extension, a first surface and a second surface opposed to the first surface; the wrapping band comprising a first plurality of portions having a first thickness and a second plurality of portions having a second thickness greater than the first thickness, wherein the portions of the first plurality and the portions of the second plurality are disposed alternately with each other along the direction of extension; the method is characterized in that it comprises the following steps: moving at least one nozzle, which has a delivery end, and/or the wrapping band towards/away from each other between a first position, where the delivery end of the nozzle and the second surface of the wrapping band are at a first distance which is less than or equal to the second thickness, and a second position, where the delivery end of the nozzle and the second surface of the wrapping band are at a second distance which is greater than the second thickness; delivering an adhesive on the first surface of the wrapping band through at least one nozzle, when the nozzle and the wrapping band are at the first position and the delivery end of the nozzle faces a portion of the first plurality. moving at least one nozzle, which has a delivery end, and/or the wrapping band towards/away from each other between a first position, where the delivery end of the nozzle and the second surface of the wrapping band are at a first distance which is less than or equal to the second thickness, and a second position, where the delivery end of the nozzle and the second surface of the wrapping band are at a second distance which is greater than the second thickness; delivering an adhesive on the first surface of the wrapping band through at least one nozzle, when the nozzle and the wrapping band are at the first position and the delivery end of the nozzle faces a portion of the first plurality.