diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index 7e35fc45..b53e1b5 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/export.h>
 #include <linux/kasan-checks.h>