diff --git a/fs/ocfs2/dlmfs/Makefile b/fs/ocfs2/dlmfs/Makefile
index 0a0b93d..a9874e4 100644
--- a/fs/ocfs2/dlmfs/Makefile
+++ b/fs/ocfs2/dlmfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 ccflags-y := -I $(srctree)/$(src)/..
 
 obj-$(CONFIG_OCFS2_FS) += ocfs2_dlmfs.o