Engaging with critical border literature, this article examines how racial and religious categories are mobilized in materializing EU borders in the Balkans. Exploring the tensions that emerge in Muslim communities in post-Socialist and post-conflict Macedonia during the Syrian "refugee crisis" in 2015, it looks at how racialized categorizations of difference are deployed along the Balkan Route to differentiate local, white European Muslims from refugee Arab Others. Through policy analysis and fieldwork, the article questions the standard, colour-blind and equal-to-all European integration by highlighting political divisions that emerge within Muslim communities. While these tensions were present long before the ongoing refugee crisis, this article argues that the current geopolitical context allows for these tensions to be utilized in the surveillance and securitization of EU border regimes.