diff --git a/puncher.nim b/puncher.nim
index d985806..11a6562 100644
--- a/puncher.nim
+++ b/puncher.nim
@@ -1,4 +1,4 @@
-import asyncdispatch, asyncnet, net, port_prediction
+import asyncdispatch, asyncnet, net, port_prediction, strformat
 
 from nativesockets import SockAddr, SockAddr_storage, SockLen
 from sequtils import any
@@ -41,6 +41,7 @@ proc punch(puncher: Puncher, peerIp: IpAddress, peerPort: Port,
     raise newException(PunchHoleError,
                        "hole punching for given parameters already active")
   puncher.attempts.add(attempt)
+  echo &"sending msg {msg} to {peerIp}, predicted ports: {attempt.dstPorts}"
   var peerAddr: Sockaddr_storage
   var peerSockLen: SockLen
   try: