He became bishop of the new Diocese of Maradi on 13 March 2001. He chose the motto "Everything is grace". In the diocese, he created new structures of administration and ministry, for its area which is twice as large as Germany. He focused on a dialogue with Islam in a region where less than 1% of the population are Christians, in a context where the peaceful relationship were interrupted in January 2015 by violence against Christian locations in Miamey and Maradi, following the terrorist attack on Charlie Hebdo in Paris. More than 70 churches were attacked. The bishop has travelled to Europe, especially to Germany where groups including Missio and Caritas support projects in his diocese, to raise awareness of the situation in his diocese.