The title of the article published in the October 2008 issue of the Biophysical Journal, 95(7):3306–3321, should read: “Interaction of Gramicidin S and its Aromatic Amino-Acid Analogs with Phospholipid Membranes” instead of “Interaction of Gramicidin S and its Aromatic Amino-Acid Analog with Phospholipid Membranes”.