diff --git a/usr.bin/netstat/bpf.c b/usr.bin/netstat/bpf.c
index 9546ac0fede..f5cda6a82ba 100644
--- a/usr.bin/netstat/bpf.c
+++ b/usr.bin/netstat/bpf.c
@@ -83,7 +83,7 @@ bpf_flags(struct xbpf_d *bd, char *flagbuf)
 }       
 
 void
-bpf_stats(char *interface)
+bpf_stats(char *ifname)
 {
 	struct xbpf_d *d, *bd;
 	char *pname, flagbuf[12];
@@ -111,7 +111,7 @@ bpf_stats(char *interface)
 	    "Pid", "Netif", "Flags", "Recv", "Drop", "Match", "Sblen",
 	    "Hblen", "Command");
 	for (d = &bd[0]; d < &bd[size / sizeof(*d)]; d++) {
-		if (interface && strcmp(interface, d->bd_ifname) != 0)
+		if (ifname && strcmp(ifname, d->bd_ifname) != 0)
 			continue;
 		bpf_flags(d, flagbuf);
 		pname = bpf_pidname(d->bd_pid);
diff --git a/usr.bin/netstat/ipsec.c b/usr.bin/netstat/ipsec.c
index 63bdd52121a..125be122fad 100644
--- a/usr.bin/netstat/ipsec.c
+++ b/usr.bin/netstat/ipsec.c
@@ -335,7 +335,7 @@ print_newipsecstats(const struct newipsecstat *newipsecstat)
 }
   
 void
-ipsec_stats_new(u_long off, const char *name, int af __unused)
+ipsec_stats_new(u_long off, const char *name, int family __unused)
 {
 	struct newipsecstat newipsecstat;
 
@@ -384,7 +384,7 @@ print_ahstats(const struct ahstat *ahstat)
 }
 
 void
-ah_stats(u_long off, const char *name, int af __unused)
+ah_stats(u_long off, const char *name, int family __unused)
 {
 	struct ahstat ahstat;
 
@@ -434,7 +434,7 @@ print_espstats(const struct espstat *espstat)
 }
 
 void
-esp_stats(u_long off, const char *name, int af __unused)
+esp_stats(u_long off, const char *name, int family __unused)
 {
 	struct espstat espstat;
 
@@ -479,7 +479,7 @@ print_ipcompstats(const struct ipcompstat *ipcompstat)
 }
 
 void
-ipcomp_stats(u_long off, const char *name, int af __unused)
+ipcomp_stats(u_long off, const char *name, int family __unused)
 {
 	struct ipcompstat ipcompstat;
 
diff --git a/usr.bin/netstat/pfkey.c b/usr.bin/netstat/pfkey.c
index 377ff17d4cd..ed2c00c209d 100644
--- a/usr.bin/netstat/pfkey.c
+++ b/usr.bin/netstat/pfkey.c
@@ -120,7 +120,7 @@ pfkey_msgtype_names(int x)
 }
 
 void
-pfkey_stats(u_long off, const char *name, int af __unused)
+pfkey_stats(u_long off, const char *name, int family __unused)
 {
 	struct pfkeystat pfkeystat;
 	unsigned first, type;