1 files changed, 4 insertions, 0 deletions
diff --git a/mtl.c b/mtl.c
index 7f53fa2..42e5de2 100644
--- a/mtl.c
+++ b/mtl.c
@@ -1,3 +1,7 @@
+/*
+ * Copyright (C) 2018 Tomasz Kramkowski <tk@the-tk.com>
+ * SPDX-License-Identifier: MIT
+ */
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>