diff --git a/tests/sys/netinet/socket_afinet.c b/tests/sys/netinet/socket_afinet.c
--- a/tests/sys/netinet/socket_afinet.c
+++ b/tests/sys/netinet/socket_afinet.c
@@ -82,7 +82,7 @@
 	bzero(&sin, sizeof(sin));
 	sin.sin_family = AF_INET;
 	sin.sin_len = sizeof(sin);
-	sin.sin_port = htons(6666);
+	sin.sin_port = htons(0);
 	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
 	rc = bind(sd, (struct sockaddr *)&sin, sizeof(sin));
 	ATF_CHECK_EQ(0, rc);
@@ -95,6 +95,7 @@
 {
 	int ss, ss2, cs, rc;
 	struct sockaddr_in sin;
+	socklen_t slen;
 	struct pollfd pfd;
 	int one = 1;
 
@@ -108,12 +109,15 @@
 	bzero(&sin, sizeof(sin));
 	sin.sin_family = AF_INET;
 	sin.sin_len = sizeof(sin);
-	sin.sin_port = htons(6666);
+	sin.sin_port = htons(0);
 	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
 	rc = bind(ss, (struct sockaddr *)&sin, sizeof(sin));
 	ATF_CHECK_EQ(0, rc);
 	rc = listen(ss, 1);
 	ATF_CHECK_EQ(0, rc);
+	slen = sizeof(sin);
+	rc = getsockname(ss, (struct sockaddr *)&sin, &slen);
+	ATF_CHECK_EQ(0, rc);
 
 	/* Client connects, server accepts. */
 	cs = socket(PF_INET, SOCK_STREAM, 0);
@@ -154,6 +158,7 @@
 {
 	int ss, ss2, cs, rc;
 	struct sockaddr_in sin;
+	socklen_t slen;
 	struct pollfd pfd;
 	char buffer;
 	int one = 1;
@@ -168,12 +173,15 @@
 	bzero(&sin, sizeof(sin));
 	sin.sin_family = AF_INET;
 	sin.sin_len = sizeof(sin);
-	sin.sin_port = htons(6666);
+	sin.sin_port = htons(0);
 	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
 	rc = bind(ss, (struct sockaddr *)&sin, sizeof(sin));
 	ATF_CHECK_EQ(0, rc);
 	rc = listen(ss, 1);
 	ATF_CHECK_EQ(0, rc);
+	slen = sizeof(sin);
+	rc = getsockname(ss, (struct sockaddr *)&sin, &slen);
+	ATF_CHECK_EQ(0, rc);
 
 	/* Client connects, server accepts. */
 	cs = socket(PF_INET, SOCK_STREAM, 0);
@@ -232,6 +240,7 @@
 ATF_TC_BODY(socket_afinet_stream_reconnect, tc)
 {
 	struct sockaddr_in sin;
+	socklen_t slen;
 	int ss, cs, rc;
 
 	/*
@@ -245,12 +254,15 @@
 	bzero(&sin, sizeof(sin));
 	sin.sin_family = AF_INET;
 	sin.sin_len = sizeof(sin);
-	sin.sin_port = htons(6666);
+	sin.sin_port = htons(0);
 	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
 	rc = bind(ss, (struct sockaddr *)&sin, sizeof(sin));
 	ATF_CHECK_EQ(0, rc);
 	rc = listen(ss, 1);
 	ATF_CHECK_EQ(0, rc);
+	slen = sizeof(sin);
+	rc = getsockname(ss, (struct sockaddr *)&sin, &slen);
+	ATF_CHECK_EQ(0, rc);
 
 	/* Client connects, shuts down. */
 	cs = socket(PF_INET, SOCK_STREAM, 0);