1 files changed, 3 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 2451468..ddb178b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,6 @@
+## SPDX-FileCopyrightText: 2018 M. Shulhan <ms@kilabit.info>
+## SPDX-License-Identifier: GPL-3.0-or-later
+
 .PHONY: all build install
 
 all: install