Interdisciplinary researchers can be perceived as valuable but also as dilettantistic. Therefore, claiming an interdisciplinary self and identity is not a straightforward task. This paper draws on a narrative-discursive psychology approach to analyse the biographical narrative of a postdoctoral researcher to position himself successfully as interdisciplinary. This autobiographical story was published in the scientific journal Nature. The analysis of this account identifies a number of discursive resources that can be used for the construction of oneself as an interdisciplinary researcher, and for the negotiation of this position as convenient and desirable.