diff --git a/tools/testing/selftests/riscv/cfi/Makefile b/tools/testing/selftests/riscv/cfi/Makefile
index 96a4dc4b69c3..93b4738c0e2e 100644
--- a/tools/testing/selftests/riscv/cfi/Makefile
+++ b/tools/testing/selftests/riscv/cfi/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
 CFLAGS += $(KHDR_INCLUDES)
 CFLAGS += -I$(top_srcdir)/tools/include