diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index ff7858773a2..3f56ca4bf5e 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -1,4 +1,4 @@
-/* Handle initialization things in C++.
+/* Handle initialization things in -*- C++ -*-
    Copyright (C) 1987-2022 Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com)