diff --git a/lisp/progmodes/ebnf-dtd.el b/lisp/progmodes/ebnf-dtd.el
index 45c8abd0fad..9a99f222cc8 100644
--- a/lisp/progmodes/ebnf-dtd.el
+++ b/lisp/progmodes/ebnf-dtd.el
@@ -1345,6 +1345,5 @@ See documentation for variable `ebnf-dtd-lex'."
 
 (provide 'ebnf-dtd)
 
-
-;;; arch-tag:
+;;; arch-tag: c21bb640-135f-4afa-8712-fa11d86301c4
 ;;; ebnf-dtd.el ends here