diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h
index 728d4e0..c3c95d1 100644
--- a/include/linux/fault-inject.h
+++ b/include/linux/fault-inject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FAULT_INJECT_H
 #define _LINUX_FAULT_INJECT_H