diff --git a/auth-juniper.c b/auth-juniper.c
index 30ceb3aee80c5bf7c74df81a93bd5c2490d0fd62..7c92b2d90899236d40da11505d4e872bf1cdb8a7 100644
--- a/auth-juniper.c
+++ b/auth-juniper.c
@@ -344,7 +344,7 @@ static int tncc_preauth(struct openconnect_info *vpninfo)
 	struct oc_vpn_option *cookie;
 	const char *dspreauth = NULL, *dssignin = "null";
 	char recvbuf[1024], *p;
-	int len;
+	int len, flags;
 
 	for (cookie = vpninfo->cookies; cookie; cookie = cookie->next) {
 		if (!strcmp(cookie->option, "DSPREAUTH"))
@@ -368,11 +368,21 @@ static int tncc_preauth(struct openconnect_info *vpninfo)
 			     _("Failed to allocate memory for communication with TNCC\n"));
 		return buf_free(buf);
 	}
+	
+#ifdef __APPLE__
+  // Equally, you cannot use SOCK_SEQPACKET with AF_UNIX on Mac OS
+  // https://stackoverflow.com/questions/13287333/sock-seqpacket-availability
+
+  flags = SOCK_STREAM;
+#else
+  flags = SOCK_SEQPACKET;
+#endif
+
 #ifdef SOCK_CLOEXEC
-	if (socketpair(AF_UNIX, SOCK_SEQPACKET | SOCK_CLOEXEC, 0, sockfd))
+	if (socketpair(AF_UNIX, flags | SOCK_CLOEXEC, 0, sockfd))
 #endif
 	{
-		if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, sockfd)) {
+		if (socketpair(AF_UNIX, flags, 0, sockfd)) {
 			buf_free(buf);
 			return -errno;
 		}