diff --git a/include/spdlog/mdc.h b/include/spdlog/mdc.h
index 6c4c527f..8add9d31 100644
--- a/include/spdlog/mdc.h
+++ b/include/spdlog/mdc.h
@@ -1,3 +1,6 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
 #pragma once
 
 #include <spdlog/common.h>