diff --git a/core/net/ip/tcp-socket.c b/core/net/ip/tcp-socket.c
index cd26634a1..f709a3dfb 100644
--- a/core/net/ip/tcp-socket.c
+++ b/core/net/ip/tcp-socket.c
@@ -357,6 +357,8 @@ tcp_socket_send(struct tcp_socket *s,
     s->output_senddata_len = s->output_data_len;
   }
 
+  tcpip_poll_tcp(s->c);
+
   return len;
 }
 /*---------------------------------------------------------------------------*/