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-rw-r--r--lisp/play/gametree.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/play/gametree.el b/lisp/play/gametree.el
index 1c2c24ad75a..c6aef027e5f 100644
--- a/lisp/play/gametree.el
+++ b/lisp/play/gametree.el
@@ -1,4 +1,4 @@
-;;; gametree.el --- manage game analysis trees in Emacs
+;;; gametree.el --- manage game analysis trees in Emacs -*- lexical-binding: t -*-
;; Copyright (C) 1997, 1999, 2001-2021 Free Software Foundation, Inc.