OK?

diff --git dhcpd.c dhcpd.c
index 926df9172af..7144ffdbbee 100644
--- dhcpd.c
+++ dhcpd.c
@@ -147,7 +147,7 @@ main(int argc, char *argv[])
 		case 'u':
 			udpsockmode = 1;
 			if (optarg != NULL) {
-				if (inet_aton(optarg, &udpaddr) != 1)
+				if (inet_pton(AF_INET, optarg, &udpaddr) != 1)
 					errx(1, "Cannot parse binding IP "
 					    "address: %s", optarg);
 			}

-- 
In my defence, I have been left unsupervised.