1 files changed, 4 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/eval-reg.el b/lisp/emacs-lisp/eval-reg.el
index d97a4ea46de..a38acade8be 100644
--- a/lisp/emacs-lisp/eval-reg.el
+++ b/lisp/emacs-lisp/eval-reg.el
@@ -199,11 +199,14 @@ This version calls `eval-region' on the whole buffer."
   (eval-region (point-min) (point-max) elisp-output))
 
 
-(defun elisp-eval-buffer (&optional elisp-bufname elisp-printflag)
+(defun elisp-eval-buffer (&optional elisp-bufname elisp-printflag filename)
   "Execute BUFFER as Lisp code.  Use current buffer if BUFFER is nil.
 Programs can pass argument PRINTFLAG which controls printing of
 output: nil means discard it; anything else is stream for print.
 
+The argument FILENAME is accepted and ignored, just to avoid
+crashes.
+
 This version calls `eval-region' on the whole buffer."
   (interactive)
   (if (null elisp-bufname)