diff --git a/bin/tests/timer_test.c b/bin/tests/timer_test.c
index 790ce40574..5f6015bdcb 100644
--- a/bin/tests/timer_test.c
+++ b/bin/tests/timer_test.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1998-2001, 2004, 2007, 2013-2016  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1998-2001, 2004, 2007, 2013-2016, 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
@@ -106,7 +106,7 @@ main(int argc, char *argv[]) {
 			workers = 8192;
 	} else
 		workers = 2;
-	printf("%d workers\n", workers);
+	printf("%u workers\n", workers);
 
 	RUNTIME_CHECK(isc_mem_create(0, 0, &mctx1) == ISC_R_SUCCESS);
 	RUNTIME_CHECK(isc_taskmgr_create(mctx1, workers, 0, &manager) ==
diff --git a/util/copyrights b/util/copyrights
index eca5b40f94..95a0faa6b0 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -2528,7 +2528,7 @@
 ./bin/tests/tasks/win32/t_tasks.vcxproj.filters.in	X	2013,2015
 ./bin/tests/tasks/win32/t_tasks.vcxproj.in	X	2013,2015,2016,2017
 ./bin/tests/tasks/win32/t_tasks.vcxproj.user	X	2013,2015
-./bin/tests/timer_test.c			C	1998,1999,2000,2001,2004,2007,2013,2014,2015,2016
+./bin/tests/timer_test.c			C	1998,1999,2000,2001,2004,2007,2013,2014,2015,2016,2018
 ./bin/tests/timers/Makefile.in			MAKE	1999,2000,2001,2002,2004,2007,2009,2012,2014,2016,2017
 ./bin/tests/timers/t_timers.c			C	1999,2000,2001,2004,2007,2008,2009,2011,2013,2016
 ./bin/tests/timers/win32/t_timers.vcxproj.filters.in	X	2013,2015