This article contributes towards ongoing debates on gender, security and post-conflict studies. Its focus is on the activities of male peace-keepers and their gendered relations with women and girls. Against the backdrop of the peacekeeping economies in the Democratic Republic of Congo and Sierra Leone, we focus on the consequencesof male peacekeepers’ construction and enactment of masculinity (and masculinities) on the security of local women. We concludeby suggesting that a deeper understanding of gender relations and security in peacekeeping contexts is necessary for any policy intervention in post-conflict settings.