diff --git a/src/indirectmap.h b/src/indirectmap.h
index 28e1e8ded..76da4a6bd 100644
--- a/src/indirectmap.h
+++ b/src/indirectmap.h
@@ -1,3 +1,7 @@
+// Copyright (c) 2016 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
 #ifndef BITCOIN_INDIRECTMAP_H
 #define BITCOIN_INDIRECTMAP_H