diff --git a/lisp/emacs-lisp/profile.el b/lisp/emacs-lisp/profile.el
index f8b7571aebc..1ceb44ccb09 100644
--- a/lisp/emacs-lisp/profile.el
+++ b/lisp/emacs-lisp/profile.el
@@ -1,4 +1,4 @@
-;;; profile.el --- generate run time measurements of Emacs Lisp functions
+;;; profile.el --- Emacs profiler (OBSOLETE; use elp.el instead)
 
 ;; Copyright (C) 1992, 1994, 1998 Free Software Foundation, Inc.