This article demonstrates how international human rights treaties have the potential to fill the gaps in constitutional provisions and constitute therefore the extension of the constitutional bill of rights. Since human rights are formulated in approximately the same way in both the Francophone countries’ constitutions and in regional and international human rights treaties, through a casuistic approach, the article argues that the decisions of the human rights treaty bodies should serve as a guide to the interpretation of constitutional provisions by the Beninese constitutional judges. By being reluctant and disinterested in the decisions of its treaty monitoring bodies, the Beninese Constitutional Court deprives itself of an interpretation technique that is susceptible to strengthening the court’s legitimacy and independence. Hence, the article posits a dialogue between the Constitutional Court and the regional and international human rights treaty bodies. If at the global level, the use of UN treaties in constitutional adjudication is an essential step towards judicial globalization in human rights adjudication, at the regional level, the use of African Union treaties in constitutional adjudication is a strong signal of African “judicial” integration and therefore of Pan-Africanism.