diff --git a/ifchd/ifchd.c b/ifchd/ifchd.c
index 6291d4c..447a5e0 100644
--- a/ifchd/ifchd.c
+++ b/ifchd/ifchd.c
@@ -527,7 +527,7 @@ static int get_listen(void)
         .sun_path = "/var/state/ifchange"
     };
 
-    lsock = socket(PF_UNIX, SOCK_STREAM, 0);
+    lsock = socket(AF_UNIX, SOCK_STREAM, 0);
     if (lsock == -1)
         suicide("dispatch_work - failed to create socket");
 
diff --git a/ifchd/linux.c b/ifchd/linux.c
index 55995be..9a77d95 100644
--- a/ifchd/linux.c
+++ b/ifchd/linux.c
@@ -132,7 +132,7 @@ static int set_if_flag(int idx, short flag)
     if (!is_permitted(ifnam[idx]))
         goto out0;
 
-    fd = socket(PF_INET, SOCK_DGRAM, 0);
+    fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd == -1) {
         log_line("%s: (set_if_flag) failed to open interface socket: %s\n",
 		 ifnam[idx], strerror(errno));
@@ -184,7 +184,7 @@ void perform_ip(int idx, char *str)
     sin.sin_addr = ipaddr;
     memcpy(&ifrt.ifr_addr, &sin, sizeof(struct sockaddr));
 
-    fd = socket(PF_INET, SOCK_DGRAM, 0);
+    fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd == -1) {
         log_line("%s: (perform_ip) failed to open interface socket: %s\n",
 		 ifnam[idx], strerror(errno));
@@ -217,7 +217,7 @@ void perform_subnet(int idx, char *str)
     sin.sin_addr = subnet;
     memcpy(&ifrt.ifr_addr, &sin, sizeof(struct sockaddr));
 
-    fd = socket(PF_INET, SOCK_DGRAM, 0);
+    fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd == -1) {
         log_line("%s: (perform_ip) failed to open interface socket: %s\n",
 		 ifnam[idx], strerror(errno));
@@ -264,7 +264,7 @@ void perform_router(int idx, char *str)
     rt.rt_dev = ifnam[idx];
     rt.rt_metric = 1;
 
-    fd = socket(PF_INET, SOCK_DGRAM, 0);
+    fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd == -1) {
         log_line("%s: (perform_router) failed to open interface socket: %s\n",
 		 ifnam[idx], strerror(errno));
@@ -293,7 +293,7 @@ void perform_mtu(int idx, char *str)
     ifrt.ifr_mtu = mtu;
     strlcpy(ifrt.ifr_name, ifnam[idx], IFNAMSIZ);
 
-    fd = socket(PF_INET, SOCK_DGRAM, 0);
+    fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd == -1) {
         log_line("%s: (perform_mtu) failed to open interface socket: %s\n",
 		 ifnam[idx], strerror(errno));
@@ -325,7 +325,7 @@ void perform_broadcast(int idx, char *str)
     sin.sin_addr = broadcast;
     memcpy(&ifrt.ifr_addr, &sin, sizeof(struct sockaddr));
 
-    fd = socket(PF_INET, SOCK_DGRAM, 0);
+    fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd == -1) {
         log_line("%s: (perform_broadcast) failed to open interface socket: %s\n", ifnam[idx], strerror(errno));
         return;
diff --git a/ndhc/arp.c b/ndhc/arp.c
index 505effa..ea22ba6 100644
--- a/ndhc/arp.c
+++ b/ndhc/arp.c
@@ -69,7 +69,7 @@ static int arpping(struct client_state_t *cs, uint32_t test_ip,
     struct arpMsg arp;
 
     if (cs->arpFd == -1) {
-        int arpfd = socket(PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP));
+        int arpfd = socket(AF_PACKET, SOCK_PACKET, htons(ETH_P_ARP));
         if (arpfd == -1) {
             log_error("arp: failed to create socket: %s", strerror(errno));
             return -1;
diff --git a/ndhc/netlink.c b/ndhc/netlink.c
index b563ce3..694b7ee 100644
--- a/ndhc/netlink.c
+++ b/ndhc/netlink.c
@@ -64,7 +64,7 @@ int nl_open(struct client_state_t *cs)
 
     assert(cs->nlFd == -1);
 
-    cs->nlFd = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
+    cs->nlFd = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
 
     if (cs->nlFd == -1)
         return -1;
diff --git a/ndhc/packet.c b/ndhc/packet.c
index 1417cf3..51b740a 100644
--- a/ndhc/packet.c
+++ b/ndhc/packet.c
@@ -56,7 +56,7 @@ static int create_udp_listen_socket(unsigned int ip, int port, char *inf)
     int opt = 1;
 
     log_line("Opening listen socket on 0x%08x:%d %s", ip, port, inf);
-    if ((fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
+    if ((fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
         log_error("create_udp_listen_socket: socket failed: %s",
                   strerror(errno));
         goto out;
@@ -364,7 +364,7 @@ int kernel_packet(struct dhcpMessage *payload, uint32_t source_ip,
     int opt = 1, fd, result = -1;
     unsigned int padding;
 
-    if ((fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)
+    if ((fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)
         goto out;
 
     if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof opt) == -1)