This article assesses the impact of parents working from home on children's academic performance in high school. Using French data, we draw on the fact that, within each major social group, not all families have been equally exposed to the recent rise in work from home (WFH), depending on the specific occupations of the parents. Among lower-SES groups, we detect a significant deterioration in educational outcomes of adolescents whose parents are particularly exposed to the rise in WFH. Among higher-SES groups, we find no significant variation. The rise in WFH exposes parents and adolescents to more interaction, at an age when conflicts are frequent, and our findings suggest that this can contribute to worsening school problems in the least advantaged social environments.