We examine the effects of the schooling of girls on the education of their younger siblings. To examine the causal effect of the education of older children on their younger siblings, we use the introduction of a gender-targeted conditional cash transfer program – the Female Secondary School Stipend Program (FSSSP) in Bangladesh. We find that an additional year of schooling of older siblings increases schooling of their younger siblings by 0.13 years. The stipend program accounts for about a 10 per cent increase in the schooling of younger siblings. The results suggest that stipend programs can bring both short- and long-term gains, not only via direct benefits to affected children, but also via indirect benefits to their siblings.