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-rw-r--r--lisp/files.el1
1 files changed, 1 insertions, 0 deletions
diff --git a/lisp/files.el b/lisp/files.el
index fb4662e7ea8..d757e1a277c 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -2152,6 +2152,7 @@ unless NOMODES is non-nil."
(/= (char-after (1- (point-max))) ?\n)
(not (and (eq selective-display t)
(= (char-after (1- (point-max))) ?\r)))
+ (not buffer-read-only)
(save-excursion
(goto-char (point-max))
(insert "\n")))