diff --git a/clite/vi.js b/clite/vi.js
index 02c5bcd..2d06c2b 100644
--- a/clite/vi.js
+++ b/clite/vi.js
@@ -299,7 +299,7 @@ Options:
 				showAt(topLine);
 				break;
 			case 'a':
-				cursor_col = lines[cursor_line].length;
+				cursor_col = lines[cursor_line][0].length;
 				curses.noecho();
 				mode = 2;
 				message = 'INSERT';