diff --git a/lib/samples/sample-request.c b/lib/samples/sample-request.c
index 11cfd0ec9b..b46616c08c 100644
--- a/lib/samples/sample-request.c
+++ b/lib/samples/sample-request.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009, 2012-2016  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2009, 2012-2016, 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
@@ -85,7 +85,7 @@ make_querymessage(dns_message_t *message, const char *namestr,
 	qname0 = dns_fixedname_name(&fixedqname);
 	result = dns_name_fromtext(qname0, &b, dns_rootname, 0, NULL);
 	if (result != ISC_R_SUCCESS) {
-		fprintf(stderr, "failed to convert qname: %d\n", result);
+		fprintf(stderr, "failed to convert qname: %u\n", result);
 		return (result);
 	}
 
@@ -175,13 +175,13 @@ main(int argc, char *argv[]) {
 	isc_lib_register();
 	result = dns_lib_init();
 	if (result != ISC_R_SUCCESS) {
-		fprintf(stderr, "dns_lib_init failed: %d\n", result);
+		fprintf(stderr, "dns_lib_init failed: %u\n", result);
 		exit(1);
 	}
 
 	result = dns_client_create(&client, 0);
 	if (result != ISC_R_SUCCESS) {
-		fprintf(stderr, "dns_client_create failed: %d\n", result);
+		fprintf(stderr, "dns_client_create failed: %u\n", result);
 		exit(1);
 	}
 
diff --git a/util/copyrights b/util/copyrights
index e45a165b42..361b0952ab 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -4305,7 +4305,7 @@
 ./lib/samples/rootkey.sh			SH	2013,2016
 ./lib/samples/sample-async.c			C	2009,2013,2014,2015,2016,2018
 ./lib/samples/sample-gai.c			C	2009,2012,2013,2014,2015,2016
-./lib/samples/sample-request.c			C	2009,2012,2013,2014,2015,2016
+./lib/samples/sample-request.c			C	2009,2012,2013,2014,2015,2016,2018
 ./lib/samples/sample-update.c			C	2009,2010,2012,2013,2014,2015,2016,2017,2018
 ./lib/samples/win32/async.vcxproj.filters.in	X	2014,2015
 ./lib/samples/win32/async.vcxproj.in		X	2014,2015,2016,2017