Wikipedia is an encyclopedia on which anybody can change its content. Some users, self-proclaimed “patrollers”, regularly check recent changes in order to delete or correct those which are ruining articles integrity. The huge quantity of updates leads some articles to remain polluted a certain time before being corrected. In this work, we show how a multiagent trust model can help patrollers in their task of controlling the Wikipedia. To direct the patrollers verification towards suspicious contributors, our work relies on a formalisation of Castelfranchi & Falcone’s social trust theory to assist them by representing their trust model in a cognitive way.