1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/mail/sendmail.el b/lisp/mail/sendmail.el
index e9540f17145..f677af3e34a 100644
--- a/lisp/mail/sendmail.el
+++ b/lisp/mail/sendmail.el
@@ -860,7 +860,7 @@ See also the function `select-sendmail-coding-system'.")
                          (insert "From: " login "\n"))
                         ((eq mail-from-style 'system-default)
                          nil)
-                        (t (error "Invalid value for `system-default'")))))
+                        (t (error "Invalid value for `mail-from-style'")))))
             ;; Insert an extra newline if we need it to work around
             ;; Sun's bug that swallows newlines.
             (goto-char (1+ delimline))