diff --git a/bin/tests/system/nsupdate/ns1/sample.db.in b/bin/tests/system/nsupdate/ns1/sample.db.in
index 6881eb0162..9e85044759 100644
--- a/bin/tests/system/nsupdate/ns1/sample.db.in
+++ b/bin/tests/system/nsupdate/ns1/sample.db.in
@@ -1,3 +1,9 @@
+; Copyright (C) 2016  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/.
+
 @ 0 SOA ns1 . 0 0 0 0 0
 @ 0 NS ns1
 ns1 0 A 10.53.0.1
diff --git a/bin/tests/system/nsupdate/ns2/sample.db.in b/bin/tests/system/nsupdate/ns2/sample.db.in
index fde9dae8d6..cd2e4f4212 100644
--- a/bin/tests/system/nsupdate/ns2/sample.db.in
+++ b/bin/tests/system/nsupdate/ns2/sample.db.in
@@ -1,3 +1,9 @@
+; Copyright (C) 2016  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/.
+
 @ 0 SOA ns2 . 0 0 0 0 0
 @ 0 NS ns2
 ns2 0 A 10.53.0.2
diff --git a/lib/samples/sample-update.c b/lib/samples/sample-update.c
index 06d52dd423..809fa87fe6 100644
--- a/lib/samples/sample-update.c
+++ b/lib/samples/sample-update.c
@@ -158,7 +158,7 @@ main(int argc, char *argv[]) {
 			port = isc_commandline_argument;
 			break;
 		case 'r':
-			if (nsa_recursive < 
+			if (nsa_recursive <
 				sizeof(sa_recursive)/sizeof(*sa_recursive) &&
 			    addserver(isc_commandline_argument, &rec_servers,
 				      &sa_recursive[nsa_recursive]))