diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c
index 2ae56e9132c6..d303b834c302 100644
--- a/sys/netinet6/icmp6.c
+++ b/sys/netinet6/icmp6.c
@@ -135,8 +135,6 @@
 #endif
 
 extern struct domain inet6domain;
-extern struct ip6protosw inet6sw[];
-extern u_char ip6_protox[];
 
 struct icmp6stat icmp6stat;
 
diff --git a/sys/netinet6/ip6_forward.c b/sys/netinet6/ip6_forward.c
index bae14d7770ac..0e8ce9aee33c 100644
--- a/sys/netinet6/ip6_forward.c
+++ b/sys/netinet6/ip6_forward.c
@@ -80,9 +80,6 @@
 
 #include <netinet6/ip6protosw.h>
 
-extern struct ip6protosw inet6sw[];
-extern u_char ip6_protox[IPPROTO_MAX];
-
 struct	route_in6 ip6_forward_rt;
 
 /*
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c
index cfee62b84d53..f492fd047de2 100644
--- a/sys/netinet6/ip6_input.c
+++ b/sys/netinet6/ip6_input.c
@@ -124,7 +124,6 @@
 #include <net/net_osdep.h>
 
 extern struct domain inet6domain;
-extern struct ip6protosw inet6sw[];
 
 u_char ip6_protox[IPPROTO_MAX];
 static int ip6qmaxlen = IFQ_MAXLEN;
diff --git a/sys/netinet6/ip6_output.c b/sys/netinet6/ip6_output.c
index f148e90b3420..aaf6aa16a7e6 100644
--- a/sys/netinet6/ip6_output.c
+++ b/sys/netinet6/ip6_output.c
@@ -131,9 +131,6 @@ static int ip6_insertfraghdr __P((struct mbuf *, struct mbuf *, int,
 static int ip6_insert_jumboopt __P((struct ip6_exthdrs *, u_int32_t));
 static int ip6_splithdr __P((struct mbuf *, struct ip6_exthdrs *));
 
-extern struct ip6protosw inet6sw[];
-extern u_char ip6_protox[IPPROTO_MAX];
-
 /*
  * IP6 output. The packet in mbuf chain m contains a skeletal IP6
  * header (with pri, len, nxt, hlim, src, dst).