The inclusion of customary justice mechanisms is increasingly being invoked as an answer to the top-down, externally-driven approach to transitional justice. But the practice of engaging with customary justice systems proves complicated. The approach of governments and the international community has been criticized as 'ethnojustice', where a male-elderly version of customary justice is invented and imposed, based on a myth of community consensus. In Somalia, the government and international community are currently considering a role for customary justice systems in the reintegration of low-risk disengaged Al-Shabaab (AS) combatants. In this article we combine unique data on local perceptions regarding the return of ex-combatants in Somalia with insights from the literature, to critically examine the prospects of engaging customary justice mechanisms in South-Central Somalia in the reintegration of disengaged Al Shabaab combatants and of a supporting role for the international donor community and the government.