This paper presents a study of students' experiences of joint supervision practices and supervisors' professional work in doctoral education in one department of a Finnish university. A qualitative methodology was used to explore students' experiences of joint supervision practices and an inductive protocol was used to analyse the data gathered through thematic interviews (N = 11). The results describe three identified joint supervision practices: the complementary, the substitutive, and the diversified. The results suggest that departments and faculties should develop more official support and guidance for students to identify additional supervisors during their doctoral education.