The present study examines the production and intuition of Spanish clitics in clitic left dislocation (CLLD) structures among 26 Spanish heritage speakers (HSs) born and raised in Brazil. We tested clitic production and intuition in contexts in which Spanish clitics vary as a function of the semantic features of the object that they refer to. Results showed overextension of object clitics into contexts in which null objects were expected. Furthermore, we found higher levels of overextension among the HSs with lower patterns of heritage language use. Results are discussed along the lines of the model of heritage language acquisition and maintenance.