The invention relates to a device (100) for fastening flexible cover elements (102, 104) to a framework of a crop shelter of the greenhouse type, comprising: - at least one fastening zone (112) for fastening said device (100) to a transverse element (110), referred to as fixed, of said framework； - at least one first retaining surface (116) for retaining, in a first direction (120), a first elongate fastening element (106) fastened beforehand to a first flexible cover element (102)； characterized in that it also comprises at least one second retaining surface (118) for retaining, in a second direction (122), a second elongate fastening element (108) fastened beforehand to a second flexible cover element (104). It also relates to a crop shelter provided with such devices (100).
