diff --git a/src/bin/pgbench/pgbench.c b/src/bin/pgbench/pgbench.c
index dc0c48f86f0..e3434f47925 100644
--- a/src/bin/pgbench/pgbench.c
+++ b/src/bin/pgbench/pgbench.c
@@ -6787,7 +6787,7 @@ main(int argc, char **argv)
 				break;
 			case 'c':
 				benchmarking_option_set = true;
-				if (!option_parse_int(optarg, "-c/--clients", 1, INT_MAX,
+				if (!option_parse_int(optarg, "-c/--client", 1, INT_MAX,
 									  &nclients))
 				{
 					exit(1);
diff --git a/src/bin/pgbench/t/002_pgbench_no_server.pl b/src/bin/pgbench/t/002_pgbench_no_server.pl
index 50bde7dd0fc..b1c878e45ab 100644
--- a/src/bin/pgbench/t/002_pgbench_no_server.pl
+++ b/src/bin/pgbench/t/002_pgbench_no_server.pl
@@ -93,7 +93,7 @@ my @options = (
 	[ 'too many scripts', '-S ' x 129, [qr{at most 128 SQL scripts}] ],
 	[
 		'bad #clients', '-c three',
-		[qr{invalid value "three" for option -c/--clients}]
+		[qr{invalid value "three" for option -c/--client}]
 	],
 	[
 		'bad #threads', '-j eleven',