1 files changed, 3 insertions, 1 deletions

diff --git a/lisp/bindings.el b/lisp/bindings.el
index 3a679f778ab..2b664044de8 100644
--- a/lisp/bindings.el
+++ b/lisp/bindings.el
@@ -689,6 +689,7 @@ okay.  See `mode-line-format'.")
 ;; `kill-all-local-variables', because they have no default value.
 ;; For consistency, we give them the `permanent-local' property, even
 ;; though `kill-all-local-variables' does not actually consult it.
+;; See init_buffer_once in buffer.c for the origins of this list.
 
 (mapc (lambda (sym) (put sym 'permanent-local t))
       '(buffer-file-name default-directory buffer-backed-up
@@ -697,7 +698,8 @@ okay.  See `mode-line-format'.")
         point-before-scroll buffer-file-truename
         buffer-file-format buffer-auto-save-file-format
         buffer-display-count buffer-display-time
-        enable-multibyte-characters))
+        enable-multibyte-characters
+        buffer-file-coding-system))
 
 ;; We have base64, md5 and sha1 functions built in now.
 (provide 'base64)