The literature of Europeanization claims that the EU transforms the politics of member and candidate countries through processes such as social learning and socialization. This article questions the emphasis of Europeanization studies on ideational factors by looking at the example of Turkey-EU relations. The reform projects undertaken jointly by the EU and the Turkish police show that the EU seeks to transform the practices of candidate country actors, rather than simply their ideas. Moreover, the candidate country actors are not only passive learners, but they also seek to modify the content of EU reforms according to their interests.