Many Design Science Research (DSR) papers in Information Systems (IS) suggest sets of design principles (DPs) that provide knowledge for creating instances, in different contexts, of IT artefacts that belong to the same class. However, despite frameworks for evaluating DSR contributions, the evaluation of DP reusability to, with and for practitioners has been largely neglected. We suggest that in order to maintain the practical relevance of DSR, papers with DPs as their key outcomes should contain a reusability evaluation of the proposed principles. We propose a framework of minimum reusability evaluation of DPs by members of the target community of practitioners. The framework comprises five criteria: (1) accessibility, (2) importance, (3) novelty and insightfulness, (4) actability and guidance, and (5) effectiveness.