diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 7ccdc8f..be7dd7d 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -262,10 +262,10 @@
 	sel.proto = fl->proto;
 	sel.dport = xfrm_flowi_dport(fl);
 	if (sel.dport)
-		sel.dport_mask = ~((__u16)0);
+		sel.dport_mask = htons(~0);
 	sel.sport = xfrm_flowi_sport(fl);
 	if (sel.sport)
-		sel.sport_mask = ~((__u16)0);
+		sel.sport_mask = htons(~0);
 	sel.ifindex = fl->oif;
 
 	err = km_report(IPPROTO_DSTOPTS, &sel,