1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/files.el b/lisp/files.el
index 4373738080a..c4273a859fb 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -1414,7 +1414,7 @@ the various files."
                    (not (or buf nowarn))
                    (> (nth 7 attributes) large-file-warning-threshold)
                    (not (y-or-n-p
-                         (format "File %s is large (%sMB), really open? "
+                         (format "File %s is large (%dMB), really open? "
                                  (file-name-nondirectory filename)
                                    (/ (nth 7 attributes) 1048576)))))
           (error "Aborted"))