diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 34d094c..20a59c3 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2357,7 +2357,7 @@
 			}
 		} else
 #endif
-			if (nla_put_u32(skb, RTA_IIF, rt->rt_iif))
+			if (nla_put_u32(skb, RTA_IIF, skb->dev->ifindex))
 				goto nla_put_failure;
 	}