diff --git a/sys/fs/autofs/autofs.h b/sys/fs/autofs/autofs.h
index bab22825b6e..1a9c9b07472 100644
--- a/sys/fs/autofs/autofs.h
+++ b/sys/fs/autofs/autofs.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2014 The FreeBSD Foundation
  * All rights reserved.
  *
diff --git a/sys/fs/autofs/autofs_ioctl.h b/sys/fs/autofs/autofs_ioctl.h
index 92d7314f160..8bfefc25338 100644
--- a/sys/fs/autofs/autofs_ioctl.h
+++ b/sys/fs/autofs/autofs_ioctl.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *
diff --git a/sys/fs/autofs/autofs_vfsops.c b/sys/fs/autofs/autofs_vfsops.c
index b427a7fa70d..df2958ddf8a 100644
--- a/sys/fs/autofs/autofs_vfsops.c
+++ b/sys/fs/autofs/autofs_vfsops.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2014 The FreeBSD Foundation
  * All rights reserved.
  *
diff --git a/sys/fs/autofs/autofs_vnops.c b/sys/fs/autofs/autofs_vnops.c
index 3dfdb559e9b..1c70d879179 100644
--- a/sys/fs/autofs/autofs_vnops.c
+++ b/sys/fs/autofs/autofs_vnops.c
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2014 The FreeBSD Foundation
  * All rights reserved.
  *