This article argues that the mainstream (constructivist) theorizing about ethnicity should be expanded in order to take essentialist aspects that are present in the notions of "potential ethnics" into account. By focusing on the notions of "potential ethnics", that is, in this case Rwandans and Burundians, one avoids the oversimplification that still persists in the debate about essentialist and constructivist approaches to ethnicity. Qualitative interviews conducted between September 2007 and May 2008 show that Rwandans and Burundians do not conceive of ethnic categories as either constructivist or essentialist, but that constructivist and essentialist notions exist next to each other and are strongly intertwined in the different lines of reasoning. These findings support arguments criticizing the dominant constructivist theories (about being Hutu and Tutsi) as being unable to capture the complexity of ethnic realities.