diff --git a/puncher.nim b/puncher.nim
index a57f75d..b66cc0c 100644
--- a/puncher.nim
+++ b/puncher.nim
@@ -79,6 +79,7 @@ proc punch(puncher: Puncher, peerIp: IpAddress, peerPort: Port,
         # TODO: replace asyncdispatch.sendTo with asyncnet.sendTo (Nim 1.4 required)
         await sendTo(sock.getFd.AsyncFD, msg.cstring, msg.len,
                      cast[ptr SockAddr](addr peerAddr), peerSockLen)
+        await sleepAsync(10)
       if lowTTL:
         sock.getFd.setSockOptInt(IPPROTO_IP, IP_TTL, defaultTTL)
   except OSError as e: