Abstract: The invention relates to a piezoelectric module for a switch, comprising a substantially flat piezoelectric element arranged for emitting an electrical signal on mechanical deformation, electrical connecting means, positioning means and activating means wherein the positioning means comprise two elongated support elements extending substantially parallel, such support elements being positioned at a distance from the middle of the piezoelectric element and wherein the activating means comprise at least one projection moveable in the transverse direction of the piezoelectric element, such a projection engaging with the second side of the piezoelectric element between the support elements on the piezoelectric element. As a result of these measures, deformation only occurs in one direction, so that the element is not subjected to such a heavy load and the life of the piezoelectric element is expected to increase.