diff --git a/newlib/libc/posix/scandir.c b/newlib/libc/posix/scandir.c
index d95cff378..57b96827e 100644
--- a/newlib/libc/posix/scandir.c
+++ b/newlib/libc/posix/scandir.c
@@ -1,6 +1,8 @@
 #ifndef HAVE_OPENDIR
 
 /*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1983 Regents of the University of California.
  * All rights reserved.
  *