diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index 707d2be2b2a..c265d02b4e2 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -363,6 +363,11 @@ ip_init(void)
 void
 ip_destroy(void)
 {
+	int i;
+
+	if ((i = pfil_head_unregister(&V_inet_pfil_hook)) != 0)
+		printf("%s: WARNING: unable to unregister pfil hook, "
+		    "error %d\n", __func__, i);
 
 	/* Cleanup in_ifaddr hash table; should be empty. */
 	hashdestroy(V_in_ifaddrhashtbl, M_IFADDR, V_in_ifaddrhmask);
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c
index 31f048f1886..a94d5c22c50 100644
--- a/sys/netinet6/ip6_input.c
+++ b/sys/netinet6/ip6_input.c
@@ -307,7 +307,11 @@ ip6proto_unregister(short ip6proto)
 void
 ip6_destroy()
 {
+	int i;
 
+	if ((i = pfil_head_unregister(&V_inet6_pfil_hook)) != 0)
+		printf("%s: WARNING: unable to unregister pfil hook, "
+		    "error %d\n", __func__, i);
 	hashdestroy(V_in6_ifaddrhashtbl, M_IFADDR, V_in6_ifaddrhmask);
 	nd6_destroy();
 	callout_drain(&V_in6_tmpaddrtimer_ch);