diff --git a/bin/tests/system/addzone/ns3/e.db b/bin/tests/system/addzone/ns3/e.db
index 620f4cd947..44c8d99399 100644
--- a/bin/tests/system/addzone/ns3/e.db
+++ b/bin/tests/system/addzone/ns3/e.db
@@ -1,3 +1,9 @@
+; Copyright (C) 2017  Internet Systems Consortium, Inc. ("ISC")
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
 @	SOA	ns3 hostmaster 0 0 0 0 0
 @	NS	ns3
 ns3	A	10.53.0.3