Abstract: A building element for a toy building set, comprising a body part 1 with coupling studs 3a, 3b on the top face and complementarily configured coupling means 2a, 2b on the bottom face, and wherein one or more electrical conductors 4a, 4b is/are provided that connect one or more coupling studs with one or more complementarily configured coupling means; and wherein the conductors comprise an electrically insulating and curable material into which a plurality of electrically conductive elements are admixed and distributed, such as fibres or particles, in such a way that the conductor is able to convey he current through the conductor from the coupling stud to an electrical contact face on the complementarily configured coupling means.