We present the first description of the nest and eggs of the Santa Marta Brush-Finch (Atlapetes melanocephalus), a species endemic to the Santa Marta Mountains, Colombia. Three nests were found; all were bulky cups built with different materials and located in different vegetation types, as found in other members of the genus Atlapetes. Nests contained two eggs, white with small brown spots. Nesting of A. melanocephalus apparently is not restricted to a specific habitat, suggesting that nests of the species could be found in almost any habitat with dense vegetation within its elevational range.