1 files changed, 24 insertions, 22 deletions

diff --git a/lisp/international/mule-cmds.el b/lisp/international/mule-cmds.el
index 451ac39cbfa..feed9870a8e 100644
--- a/lisp/international/mule-cmds.el
+++ b/lisp/international/mule-cmds.el
@@ -930,28 +930,30 @@ It is highly recommended to fix it before writing to a file."
                       (append default-coding-system
                               (list (cons buffer-file-coding-system base)))))))
 
-      ;; If default-buffer-file-coding-system is not nil nor undecided,
-      ;; append it to the defaults.
-      (if default-buffer-file-coding-system
-          (let ((base (coding-system-base default-buffer-file-coding-system)))
-            (or (eq base 'undecided)
-                (rassq base default-coding-system)
-                (setq default-coding-system
-                      (append default-coding-system
-                              (list (cons default-buffer-file-coding-system
-                                          base)))))))
-
-      ;; If the most preferred coding system has the property mime-charset,
-      ;; append it to the defaults.
-      (let ((preferred (coding-system-priority-list t))
-            base)
-        (and (coding-system-p preferred)
-             (setq base (coding-system-base preferred))
-             (coding-system-get preferred :mime-charset)
-             (not (rassq base default-coding-system))
-             (setq default-coding-system
-                   (append default-coding-system
-                           (list (cons preferred base)))))))
+      (unless (and buffer-file-coding-system-explicit
+                   (cdr buffer-file-coding-system-explicit))
+        ;; If default-buffer-file-coding-system is not nil nor undecided,
+        ;; append it to the defaults.
+        (if default-buffer-file-coding-system
+            (let ((base (coding-system-base default-buffer-file-coding-system)))
+              (or (eq base 'undecided)
+                  (rassq base default-coding-system)
+                  (setq default-coding-system
+                        (append default-coding-system
+                                (list (cons default-buffer-file-coding-system
+                                            base)))))))
+
+        ;; If the most preferred coding system has the property mime-charset,
+        ;; append it to the defaults.
+        (let ((preferred (coding-system-priority-list t))
+              base)
+          (and (coding-system-p preferred)
+               (setq base (coding-system-base preferred))
+               (coding-system-get preferred :mime-charset)
+               (not (rassq base default-coding-system))
+               (setq default-coding-system
+                     (append default-coding-system
+                             (list (cons preferred base))))))))
 
     (if select-safe-coding-system-accept-default-p
         (setq accept-default-p select-safe-coding-system-accept-default-p))