“Regrettably, it seems that breaking one border causes others to tumble”

The paper focuses on the interplay of nationalist and homonegative discourses applied by anti-LGBT activists during the Slovak Referendum on the Protection of Family in 2015. The study applies a conceptual framework of Europeanisation as a cognitive resource, which activists on the national level apply in order to campaign against same-sex marriage and adoption rights of LGBT people. Via frame content analysis, the study contributes to diverse literature on the discursive cleavage-building of homonegativity and ethno-nationalism in Central and Eastern European countries.