Sexual harassment has become so frequent and ubiquitous in schools that these behaviours have become normalised and expected. In order to prevent the re-enactment and perpetuation of this problem, it is important to explore processes that contribute to its existence. A high school sexual harassment lawsuit in Sweden is used as a case study to illustrate ways that might explain how sexual harassment is normalised at the organisational level. A thematic analysis has been used to identify themes and subthemes. The results show a multi-layered web of factors and practices related to sexual harassment at the organisational level in the school. In order to change a school's culture from one where sexual harassment is normalised, multiple needs must be addressed: organisational weaknesses must be strengthened; adults enact their responsibility to change the situation; and awareness of the relationship between sexual harassment, gender, and power needs to be increased.