In the article “A Critical Role for Astrocytes in Hypercapnic Vasodilation in Brain” by Clare Howarth, Brad Sutherland, Hyun B. Choi, Chris Martin, Barbara Lykke Lind, Lila Khennouf, Jeffrey M. LeDue, Janelle M.P. Pakan, Rebecca W.Y. Ko, Graham Ellis-Davies, Martin Lauritzen, Nicola R. Sibson, Alastair M. Buchan, and Brian A. MacVicar, which appeared on pages 2403–2414 of the March 1, 2017 issue, one of the authors' names is incorrect. The corrected author list is as follows: Clare Howarth, Brad A. Sutherland, Hyun B. Choi, Chris Martin, Barbara Lykke Lind, Lila Khennouf, Jeffrey M. LeDue, Janelle M.P. Pakan, Rebecca W.Y. Ko, Graham Ellis-Davies, Martin Lauritzen, Nicola R. Sibson, Alastair M. Buchan, and Brian A. MacVicar. The author line has been corrected on the online PDF version.