In the Core Curriculum entitled “Physiology and Pathophysiology of Potassium Homeostasis: Core Curriculum 2019” that appeared in the November 2019 issue of AJKD (Palmer and Clegg, volume 74, issue 5, pages 682-695), there was an error in the financial disclosure statement. The corrected statement is “Financial Disclosure: Dr Palmer reports receipt of consultancy and speaker fees from Relypsa and AstraZeneca. Dr Clegg is the spouse of Dr Palmer.”