This article is based on the recognition of the need for the work of a memory center or a truth commission to analyze the political challenge that this entails, bearing in mind that the institutional circumstances that condition the production of a final report turn its exercise of memory into a hegemonic narrative, while it is expected to contribute to the construction of the symbolic framework of post-conflict. The text presents arguments to show that the existence of victims not integrated in the institutional narrative opens the possibility of a politics of memory, as a task that must be incurred by society, that assumes the challenges left by the work of a truth commission. The text concludes that it is a citizen’s task to open the space for the political action of those victims not included in the regime of memory produced institutionally. © 2018, Universidad Nacional de Colombia. All rights reserved.