diff --git a/puncher.nim b/puncher.nim
index 82d517f..9bf5776 100644
--- a/puncher.nim
+++ b/puncher.nim
@@ -63,7 +63,6 @@ proc punch(puncher: Puncher, peerIp: IpAddress, peerPort: Port,
       # TODO: replace asyncdispatch.sendTo with asyncnet.sendTo (Nim 1.4 required)
       await sendTo(puncher.sock.getFd().AsyncFD, msg.cstring, msg.len,
                    cast[ptr SockAddr](addr peerAddr), peerSockLen)
-      await sleepAsync(20)
     if lowTTL:
       puncher.sock.getFd.setSockOptInt(IPPROTO_IP, IP_TTL, defaultTTL)
   except OSError as e: