An adherent gelled or pasty composition for cleaning and/or scenting a toilet, wherein the composition is applied internally onto the toilet ceramic and is rinsed off only after several flushing operations, the composition comprising: a surfactant selected from the group consisting of alkylpolyglycosides, amphoacetates, amphodiacetates, betaines, fatty alcohol ethercarboxylic acids, fatty acid sarcosinates, cocamidopropylamine oxide, aminopropionates, and biosurfactants; perfume; and water; wherein the composition comprises, as an adhesion promoter, an ester of polyisobutene succinic acid, and wherein the composition is free of further adhesion promoters and surfactants.