diff --git a/test/bench.c b/test/bench.c
index 01aecfdd..b3e40a55 100644
--- a/test/bench.c
+++ b/test/bench.c
@@ -76,7 +76,7 @@ read_cb(evutil_socket_t fd, short which, void *arg)
 	if (writes) {
 		if (widx >= num_pipes)
 			widx -= num_pipes;
-		send(pipes[2 * widx + 1], "e", 1, 0);
+		(void) send(pipes[2 * widx + 1], "e", 1, 0);
 		writes--;
 		fired++;
 	}
@@ -102,7 +102,7 @@ run_once(void)
 	space = num_pipes / num_active;
 	space = space * 2;
 	for (i = 0; i < num_active; i++, fired++)
-		send(pipes[i * space + 1], "e", 1, 0);
+		(void) send(pipes[i * space + 1], "e", 1, 0);
 
 	count = 0;
 	writes = num_writes;
diff --git a/test/bench_cascade.c b/test/bench_cascade.c
index a5d5a6f6..831b0bcb 100644
--- a/test/bench_cascade.c
+++ b/test/bench_cascade.c
@@ -69,7 +69,7 @@ read_cb(evutil_socket_t fd, short which, void *arg)
 	char ch;
 	evutil_socket_t sock = (evutil_socket_t)(ev_intptr_t)arg;
 
-	recv(fd, &ch, sizeof(ch), 0);
+	(void) recv(fd, &ch, sizeof(ch), 0);
 	if (sock >= 0) {
 		if (send(sock, "e", 1, 0) < 0)
 			perror("send");
diff --git a/test/regress.c b/test/regress.c
index b426a1d3..6ab50913 100644
--- a/test/regress.c
+++ b/test/regress.c
@@ -1573,7 +1573,7 @@ static void send_a_byte_cb(evutil_socket_t fd, short what, void *arg)
 {
 	evutil_socket_t *sockp = arg;
 	(void) fd; (void) what;
-	write(*sockp, "A", 1);
+	(void) write(*sockp, "A", 1);
 }
 struct read_not_timeout_param
 {
@@ -1586,7 +1586,7 @@ static void read_not_timeout_cb(evutil_socket_t fd, short what, void *arg)
 	struct read_not_timeout_param *rntp = arg;
 	char c;
 	(void) fd; (void) what;
-	read(fd, &c, 1);
+	(void) read(fd, &c, 1);
 	rntp->events |= what;
 	++rntp->count;
 	if(2 == rntp->count) event_del(rntp->ev[0]);