diff --git a/bin/tests/system/catz/tests.sh b/bin/tests/system/catz/tests.sh
index 0896cc41e2..b45ab6dd19 100644
--- a/bin/tests/system/catz/tests.sh
+++ b/bin/tests/system/catz/tests.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -x
 #
-# Copyright (C) 2016, 2017  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2016-2018  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
diff --git a/lib/dns/catz.c b/lib/dns/catz.c
index ab830cc44d..84c1bea024 100644
--- a/lib/dns/catz.c
+++ b/lib/dns/catz.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016, 2017  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2016-2018  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
diff --git a/lib/ns/hooks.h b/lib/ns/hooks.h
index 43751c42d2..a1d70d9da7 100644
--- a/lib/ns/hooks.h
+++ b/lib/ns/hooks.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2017, 2018  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
diff --git a/lib/ns/tests/nstest.c b/lib/ns/tests/nstest.c
index b26ccd53f6..e9f4c36274 100644
--- a/lib/ns/tests/nstest.c
+++ b/lib/ns/tests/nstest.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2017, 2018  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
diff --git a/lib/ns/tests/query_test.c b/lib/ns/tests/query_test.c
index adf283f8c6..f94cac632f 100644
--- a/lib/ns/tests/query_test.c
+++ b/lib/ns/tests/query_test.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2017, 2018  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