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-rw-r--r--lisp/progmodes/cpp.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/progmodes/cpp.el b/lisp/progmodes/cpp.el
index bcbe669c16e..65ef83f7698 100644
--- a/lisp/progmodes/cpp.el
+++ b/lisp/progmodes/cpp.el
@@ -1,4 +1,4 @@
-;;; cpp.el --- highlight or hide text according to cpp conditionals
+;;; cpp.el --- highlight or hide text according to cpp conditionals -*- lexical-binding: t -*-
;; Copyright (C) 1994-1995, 2001-2020 Free Software Foundation, Inc.