A use of a bituminous adhesive binder for attaching a photovoltaic module to a support to be equipped, characterized in that the bituminous adhesive binder comprises from 0.1 to 5% by weight of at least one organogelling additive selected from the following compounds or mixtures thereof: - the compounds with formula (I): R-(NH)nCONH-(X)m-NHCO(NH)n-R' (I) the groups R and R', which can be either identical or different, containing an either saturated or unsaturated, linear, branched or cyclic, hydrocarbon chain comprising from 1 to 22 carbon atoms, possibly substituted, and possibly comprising heteroatoms, rings and/or heterocycles; The group X containing an either linear, cyclic or branched, saturated or unsaturated, hydrocarbon chain comprising from 1 to 22 carbon atoms, possibly substituted, and possibly comprising heteroatoms, rings and/or heterocycles; n and m are integers with a value of 0 or 1 independently of each other - The compounds with formula (II) Y-(COOH)z (II) wherein Y is an either linear or branched, saturated or unsaturated, hydrocarbon chain comprising from 4 to 68 carbon atoms, preferentially from 4 to 54 carbon atoms, more preferentially from 4 to 36 carbon atoms and z being an integer ranging from 1 to 4, preferentially from 2 to 4; - the compounds with general formula (III): AR1-Z-AR2 (III) wherein AR1 and AR2 represent, independently from each other, either a benzene ring or a condensed aromatic ring system of 6 to 20 carbon atoms substituted by at least one hydroxyl group, and Z represents a possibly substituted divalent radical, the main chain of which comprises from 6 to 20 carbon atoms and at least one amide and/or ester group. - the compounds with formula (I): R-(NH)nCONH-(X)m-NHCO(NH)n-R' (I) the groups R and R', which can be either identical or different, containing an either saturated or unsaturated, linear, branched or cyclic, hydrocarbon chain comprising from 1 to 22 carbon atoms, possibly substituted, and possibly comprising heteroatoms, rings and/or heterocycles; The group X containing an either linear, cyclic or branched, saturated or unsaturated, hydrocarbon chain comprising from 1 to 22 carbon atoms, possibly substituted, and possibly comprising heteroatoms, rings and/or heterocycles; n and m are integers with a value of 0 or 1 independently of each other the groups R and R', which can be either identical or different, containing an either saturated or unsaturated, linear, branched or cyclic, hydrocarbon chain comprising from 1 to 22 carbon atoms, possibly substituted, and possibly comprising heteroatoms, rings and/or heterocycles; The group X containing an either linear, cyclic or branched, saturated or unsaturated, hydrocarbon chain comprising from 1 to 22 carbon atoms, possibly substituted, and possibly comprising heteroatoms, rings and/or heterocycles; n and m are integers with a value of 0 or 1 independently of each other - The compounds with formula (II) Y-(COOH)z (II) wherein Y is an either linear or branched, saturated or unsaturated, hydrocarbon chain comprising from 4 to 68 carbon atoms, preferentially from 4 to 54 carbon atoms, more preferentially from 4 to 36 carbon atoms and z being an integer ranging from 1 to 4, preferentially from 2 to 4; - the compounds with general formula (III): AR1-Z-AR2 (III) wherein AR1 and AR2 represent, independently from each other, either a benzene ring or a condensed aromatic ring system of 6 to 20 carbon atoms substituted by at least one hydroxyl group, and Z represents a possibly substituted divalent radical, the main chain of which comprises from 6 to 20 carbon atoms and at least one amide and/or ester group. <EOS>