This paper builds on the latest developments of the business model literature and discusses the specificities of social entrepreneurship to develop a social business model canvas. Because of social entrepreneurship’s mission-driven aspect, opportunities as vehicles to serve the mission, the particular nature of opportunities, the institutional barriers to overcome, the size of the market, the specific type of customers, the scarcity of resources and difficulty to gather them, as well as the pre-eminence of a triple bottom line, we propose to augment the current business model definition and propose a dedicated business model canvas for social enterprises.