diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0aeb2eb..dafa1cb 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -411,7 +411,7 @@
 			   bool fastopen);
 int tcp_child_process(struct sock *parent, struct sock *child,
 		      struct sk_buff *skb);
-void tcp_enter_loss(struct sock *sk, int how);
+void tcp_enter_loss(struct sock *sk);
 void tcp_clear_retrans(struct tcp_sock *tp);
 void tcp_update_metrics(struct sock *sk);
 void tcp_init_metrics(struct sock *sk);