1 files changed, 1 insertions, 0 deletions

diff --git a/common.h b/common.h
index d69eb1a..6a904e1 100644
--- a/common.h
+++ b/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 #ifndef _COMMON_H
 #define _COMMON_H