The invention relates to an apparatus for dispensing web-like paper towels. The apparatus contains a dispensing accommodation for a towel paper roll, a further accommodation for the roll (1) when partly consumed, a dispensing drum (7), means (3, 4, 5) for leading the paper towel web (6) on the periphery surface of the dispensing drum (7) to a dispensing aperture (8), means (3, 4) for guiding the leading end of the towel paper web (11) from a supplementary roll (10) to a ready-to-use position for the change mechanism and a mechanism for amending the paper towel web to run from a supplemental roll when the previous roll is consumed. The change mechanism comprises a falling flap (12) supported by the web (6) coming from the partly consumed roll (1), a slide (13) impeded against a pushing force by the flap (12) and a press (14) impeded against a pushing force (A) by the slide. The press (14) guides the leading end of the web of the supplementary roll (10) to the dispensing drum (7) when the support of the towel web from the consumed roll (1) for the flap (12) ceases.