Natural disasters can bring out the best in people, even between those who mistrusted one another before calamity struck. This column investigates how a natural disaster affected residents’ perceptions of each other in a region long divided by religious conflict. Using household survey data from Central Sulawesi, Indonesia, before and after the 2018 Sulawesi earthquake, it finds that victims expressed higher expectations for support from other religious groups going forward, suggesting that the experience of intergroup cooperation during the 2018 disaster raised expectations for cooperation during future emergencies.