Abstract: The invention relates to an element for fixing (3) at least one modular coating blade (1) to a supporting structure (2), said element comprising: a base provided with a plane support face (6) to be fixed onto the supporting structure (2), and a fixing face (7) from which at least one protruding part (8) extends orthogonally, said protruding part to be engaged in a corresponding recess (4) in the blade (1). The projecting part (8) comprises tenons (10) on one free end (8c), said tenons progressively enlarging towards the fixing face (7) and facing an internal edge (19) of the recess (4), preventing the blade (1) from being removed.