diff --git a/transport_tcp.py b/transport_tcp.py
index 875a0e7..8a10d0b 100644
--- a/transport_tcp.py
+++ b/transport_tcp.py
@@ -53,11 +53,8 @@ class TCPTransport:
     async def _alive_loop(self):
         try:
             while True:
-                if self.writer:
-                    #logger.debug("Send alive", int(time() - self.socket_start))
-                    self.writer.write(b"0")
-                    await self.writer.drain()
-                    await asyncio.sleep(1)
+                await self.send(b"0")
+                await asyncio.sleep(1)
         except asyncio.CancelledError:
             pass
         except: