This article explores the experience of the Afro-Colombian movement over the course of two peace processes, investigating the relationship between opportunities for participation and effective inclusion. The 1991 Constituent Assembly that emerged from the peace processes of the late 1980s presented a particularly open opportunity for civil society participation, and yet the Afro-Colombian movement was unable to gain representation in negotiations for a new constitution. In the 2016 peace process with the Fuerzas Armadas Revolucionarias de Colombia, or FARC, despite insistence from the government that its negotiations with FARC were exclusively bilateral, the Afro movement was able to gain a seat at the table along with its Indigenous counterparts and generate a commitment from both parties to protect ethnic rights, known as the Capítulo Étnico (Ethnic Chapter). In contrast to existing literature that focuses on international actors as drivers of inclusion, we argue that effective inclusion reflects in large part the internal capacity, coherence, and unity of the movements themselves.