Scientists who study fungi have been working to update how fungal species are named to match modern genetic understanding. A recent proposal tried to create rules for how clinical laboratories should report fungal names, but experts are concerned that the new framework has inconsistencies and may actually cause more confusion rather than clarify things. The authors of this letter point out that some fungi get special naming considerations while others don’t, and worry that allowing multiple names for the same organism contradicts years of effort to use one standard name per species.