1 files changed, 2 insertions, 5 deletions

diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 4bad2115fb3..4ca92b13275 100644
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -1433,11 +1433,8 @@ Optional DEFAULT is password to start with."
                       (case-fold-search t)
                       (quoted-printable-header-field-end
                        (save-excursion
-                         ;; Back up to end of previous line, in case the
-                         ;; Content-Transfer-Encoding field comes first.
-                         (forward-char -1)
                          (re-search-forward
-                          "\ncontent-transfer-encoding\\(\n?[\t ]\\)*:\\(\n?[\t ]\\)*quoted-printable\\(\n?[\t ]\\)*"
+                          "^content-transfer-encoding:\\(\n?[\t ]\\)*quoted-printable\\(\n?[\t ]\\)*"
                           header-end t)))
                       (size
                        ;; Get the numeric value from the Content-Length field.
@@ -1488,7 +1485,7 @@ Optional DEFAULT is password to start with."
                        ;; Change "quoted-printable" to "8bit",
                        ;; to reflect the decoding we just did.
                        (goto-char quoted-printable-header-field-end)
-                       (zap-to-char -1 ?:)
+                       (delete-region (point) (search-backward ":"))
                        (insert ": 8bit"))))
 
                (save-excursion