diff --git a/lisp/jit-lock.el b/lisp/jit-lock.el
index 452cbd1ca51..d0522d6a791 100644
--- a/lisp/jit-lock.el
+++ b/lisp/jit-lock.el
@@ -1,6 +1,6 @@
 ;;; jit-lock.el --- just-in-time fontification  -*- lexical-binding: t -*-
 
-;; Copyright (C) 1998, 2000-2023 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2023 Free Software Foundation, Inc.
 
 ;; Author: Gerd Moellmann <gerd@gnu.org>
 ;; Keywords: faces files
@@ -90,7 +90,8 @@ See also `jit-lock-stealth-nice'."
   :type 'boolean)
 
 
-(defvaralias 'jit-lock-defer-contextually 'jit-lock-contextually)
+(define-obsolete-variable-alias 'jit-lock-defer-contextually
+  'jit-lock-contextually "30.1")
 (defcustom jit-lock-contextually 'syntax-driven
   "If non-nil, fontification should be syntactically true.
 If nil, refontification occurs only on lines that were modified.  This