diff --git a/net/core/sock.c b/net/core/sock.c
index af65d17517b8e5..f36f123b10ae39 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -918,8 +918,10 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 	case SO_MARK:
 		if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 			ret = -EPERM;
-		else
+		else {
 			sk->sk_mark = val;
+			sk_dst_reset(sk);
+		}
 		break;
 
 		/* We implement the SO_SNDLOWAT etc to