The invention relates to a method for making a nacelle element (2) that includes the steps of: (A) forming an array of heating resistors on a substrate using a photolithographic method; (B) applying a web (50, 52) of composite materials onto the array obtained in step (A); (C) applying an inner skin (12) onto the de-icing assembly (13) thus obtained. The invention also relates to a nacelle including such an element (2).