6 files changed, 12 insertions, 0 deletions
diff --git a/usr.bin/ar/acplex.l b/usr.bin/ar/acplex.l
index 589888e6dc06..f74821abf31d 100644
--- a/usr.bin/ar/acplex.l
+++ b/usr.bin/ar/acplex.l
@@ -1,5 +1,7 @@
 %{
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2008 Kai Wang
  * All rights reserved.
  *
diff --git a/usr.bin/ar/acpyacc.y b/usr.bin/ar/acpyacc.y
index 456ee1f27957..b335598c1f01 100644
--- a/usr.bin/ar/acpyacc.y
+++ b/usr.bin/ar/acpyacc.y
@@ -1,5 +1,7 @@
 %{
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2008 Kai Wang
  * All rights reserved.
  *
diff --git a/usr.bin/ar/ar.h b/usr.bin/ar/ar.h
index 957a985433ea..19668989e3cc 100644
--- a/usr.bin/ar/ar.h
+++ b/usr.bin/ar/ar.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2007 Kai Wang
  * All rights reserved.
  *
diff --git a/usr.bin/ar/read.c b/usr.bin/ar/read.c
index 704812cebb30..782505423d04 100644
--- a/usr.bin/ar/read.c
+++ b/usr.bin/ar/read.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2007 Kai Wang
  * Copyright (c) 2007 Tim Kientzle
  * All rights reserved.
diff --git a/usr.bin/ar/util.c b/usr.bin/ar/util.c
index e1230e330134..d6eb36e02687 100644
--- a/usr.bin/ar/util.c
+++ b/usr.bin/ar/util.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003-2007 Tim Kientzle
  * All rights reserved.
  *
diff --git a/usr.bin/ar/write.c b/usr.bin/ar/write.c
index 49f539bca942..15fedbcd7b7a 100644
--- a/usr.bin/ar/write.c
+++ b/usr.bin/ar/write.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2007 Kai Wang
  * All rights reserved.
  *