1 files changed, 4 insertions, 10 deletions

diff --git a/lisp/jka-compr.el b/lisp/jka-compr.el
index 23c4eccf674..fc53a0b329a 100644
--- a/lisp/jka-compr.el
+++ b/lisp/jka-compr.el
@@ -520,16 +520,10 @@ There should be no more than seven characters after the final `/'."
                    ;; don't do that conversion.
                    (and (null enable-multibyte-characters)
                         'raw-text)
-                   (let ((tail file-coding-system-alist)
-                         (newfile
-                          (jka-compr-byte-compiler-base-file-name file))
-                         result)
-                     (while tail
-                       (if (string-match (car (car tail)) newfile)
-                           (setq result (car (cdr (car tail)))
-                                 tail nil))
-                       (setq tail (cdr tail)))
-                     result)
+                   (let ((coding (find-operation-coding-system
+                                  'insert-file-contents
+                                  (jka-compr-byte-compiler-base-file-name file))))
+                     (and (consp coding) (car coding)))
                    'undecided)) )
 
           (setq local-file (or local-copy filename))