diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d2d1e15..dc9549b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1134,10 +1134,7 @@
 	const struct rtable *rt = (const struct rtable *) dst;
 	unsigned int mtu = rt->rt_pmtu;
 
-	if (mtu && time_after_eq(jiffies, rt->dst.expires))
-		mtu = 0;
-
-	if (!mtu)
+	if (!mtu || time_after_eq(jiffies, rt->dst.expires))
 		mtu = dst_metric_raw(dst, RTAX_MTU);
 
 	if (mtu && rt_is_output_route(rt))