1 files changed, 4 insertions, 0 deletions
diff --git a/common.h b/common.h
index f5a39c9..821b1cb 100644
--- a/common.h
+++ b/common.h
@@ -1,3 +1,7 @@
+/*
+ * Copyright (C) 2020 Tomasz Kramkowski <tk@the-tk.com>
+ * SPDX-License-Identifier: MIT
+ */
 #ifndef PACK_INTERNAL_H
 #define PACK_INTERNAL_H