This article explores the emergent racialisation of Peruvian migrants as one element conditioning the labour segregation that characterises Peruvian insertion in Chile. We understand racialisation as a process of construction of categories in which both individual and collective actors participate, and whose expression is demonstrated by the differentiation and inequality that affects the racialised group. We tackle the articulation of racial differences among individual actors, both Chilean employers and Peruvian migrant workers, to suggest that the attribution of naturalised characteristics to migrants is related to segregation, mobility, and specific trajectories in the labour market.