diff --git a/src/cc/games/tetris.cpp b/src/cc/games/tetris.cpp
index cd609154d..fc1830686 100644
--- a/src/cc/games/tetris.cpp
+++ b/src/cc/games/tetris.cpp
@@ -1,3 +1,4 @@
+// Copyright (c) 2016-2022 The Hush developers
 
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *