Early childhood interventions are high on the social policy agenda. Yet their impact on disciplining practices is scarce. This paper examines how early childhood interventions affect disciplining methods in Colombia, where poor households are eligible for different social programmes based on a proxy means index. Using a regression discontinuity design, I found that benefiting on a larger extent of childcare, nutritional programmes and health checks, decreases parents' use of physical disciplining. Using a different data set and through a propensity score matching, I show that mothers of children exposed longer to a child care service use more often non-physical methods.