diff --git a/src/cc/includes/cJSON.h b/src/cc/includes/cJSON.h
index d919a47a9..8a3fb9d49 100644
--- a/src/cc/includes/cJSON.h
+++ b/src/cc/includes/cJSON.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /*
  Copyright (c) 2009 Dave Gamble
  
diff --git a/src/cc/includes/curve25519.h b/src/cc/includes/curve25519.h
index 1f714861e..5fed9c9e5 100644
--- a/src/cc/includes/curve25519.h
+++ b/src/cc/includes/curve25519.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
diff --git a/src/cc/includes/libgfshare.h b/src/cc/includes/libgfshare.h
index dc8747fe9..6dc5c74e2 100644
--- a/src/cc/includes/libgfshare.h
+++ b/src/cc/includes/libgfshare.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /*
  * This file is Copyright Daniel Silverstone <dsilvers@digital-scurf.org> 2006
  *
diff --git a/src/cc/includes/tweetnacl.h b/src/cc/includes/tweetnacl.h
index ce0fa9bcb..cd0eec7c2 100644
--- a/src/cc/includes/tweetnacl.h
+++ b/src/cc/includes/tweetnacl.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 #ifndef TWEETNACL_H
 #define TWEETNACL_H 
 #define crypto_auth_PRIMITIVE "hmacsha512256"
diff --git a/src/cc/includes/uthash.h b/src/cc/includes/uthash.h
index 7b99c0133..8f5ef34da 100644
--- a/src/cc/includes/uthash.h
+++ b/src/cc/includes/uthash.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
  
 /*
  Copyright (c) 2003-2014, Troy D. Hanson     http://troydhanson.github.com/uthash/
diff --git a/src/cc/includes/utlist.h b/src/cc/includes/utlist.h
index 93c7ceef0..bf0d1176e 100644
--- a/src/cc/includes/utlist.h
+++ b/src/cc/includes/utlist.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2016-2020 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 /*
  Copyright (c) 2007-2014, Troy D. Hanson   http://troydhanson.github.com/uthash/
  All rights reserved.