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-rw-r--r--lisp/subr.el3
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/subr.el b/lisp/subr.el
index 2d55e682d3a..c14a048fb52 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -516,7 +516,8 @@ as returned by the `event-start' and `event-end' functions."
Please convert your programs to use `aref' with character-base index."
(let ((byte 0) (char 0))
(while (< byte byte-index)
- (setq byte (+ byte (char-bytes (aref string byte)))))
+ (setq byte (+ byte (char-bytes (aref string char)))
+ char (1+ char)))
(aref string char)))
;; Some programs still use this as a function.