The invention relates to a folding interior lining panel of a motor vehicle comprising a first flap and a second flap which are articulated to one another along two articulation edges. The flaps have edge faces of similar thicknesses. The flaps being articulated to one another by two strips positioned some distance apart. Each of the strips has a middle part, a first end part pressed closely against the first edge face by a first plate and a second end part pressed firmly against the second edge face by a second plate. A second strip is positioned between the first strips, the second strip has a middle part, a first end part pressed firmly against the first edge face by a third plate and a second end part pressed firmly against the second edge face by a fourth plate.