diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 98aa50c..b45a7c0 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2200,7 +2200,9 @@
 
 	NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
 
-	expires = rt->rt6i_expires ? rt->rt6i_expires - jiffies : 0;
+	expires = (rt->rt6i_flags & RTF_EXPIRES) ?
+			rt->rt6i_expires - jiffies : 0;
+
 	if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0,
 			       expires, rt->u.dst.error) < 0)
 		goto nla_put_failure;