diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 1662e1178949..205dca1c30b7 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -621,7 +621,9 @@ int mptcp_subflow_create_socket(struct sock *sk, struct socket **new_sock)
 	 */
 	sf->sk->sk_net_refcnt = 1;
 	get_net(net);
+#ifdef CONFIG_PROC_FS
 	this_cpu_add(*net->core.sock_inuse, 1);
+#endif
 	err = tcp_set_ulp(sf->sk, "mptcp");
 	release_sock(sf->sk);