diff --git a/include/net/tcp.h b/include/net/tcp.h
index 7a2248a..b8ea128 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -527,7 +527,7 @@
 
 void tcp_send_probe0(struct sock *);
 void tcp_send_partial(struct sock *);
-int tcp_write_wakeup(struct sock *);
+int tcp_write_wakeup(struct sock *, int mib);
 void tcp_send_fin(struct sock *sk);
 void tcp_send_active_reset(struct sock *sk, gfp_t priority);
 int tcp_send_synack(struct sock *);