diff options
Diffstat (limited to 'lisp/vc/diff.el')
| -rw-r--r-- | lisp/vc/diff.el | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lisp/vc/diff.el b/lisp/vc/diff.el index b850350cd8a..ac94586cace 100644 --- a/lisp/vc/diff.el +++ b/lisp/vc/diff.el @@ -226,8 +226,9 @@ With prefix arg, prompt for diff switches." "View the differences between BUFFER and its associated file. This requires the external program `diff' to be in your `exec-path'." (interactive "bBuffer: ") - (with-current-buffer (get-buffer (or buffer (current-buffer))) - (diff buffer-file-name (current-buffer) nil 'noasync))) + (let ((buf (get-buffer (or buffer (current-buffer))))) + (with-current-buffer (or (buffer-base-buffer buf) buf) + (diff buffer-file-name (current-buffer) nil 'noasync)))) (provide 'diff) |