1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/files.el b/lisp/files.el
index 93467439621..f4766bc1760 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -516,7 +516,7 @@ If the current buffer now contains an empty file that you just visited
                 file-dir (file-name-directory file)))
      (list (read-file-name
             "Find alternate file: " file-dir nil nil file-name))))
-  (and (buffer-modified-p)
+  (and (buffer-modified-p) (buffer-file-name)
        ;; (not buffer-read-only)
        (not (yes-or-no-p (format "Buffer %s is modified; kill anyway? "
                                  (buffer-name))))