diff --git a/tcp_syni.nim b/tcp_syni.nim
index df5536e..bce5907 100644
--- a/tcp_syni.nim
+++ b/tcp_syni.nim
@@ -257,6 +257,7 @@ proc doAccept(puncher: TcpSyniPuncher, srcIp: IpAddress,
       let i = puncher.findAcceptAttempt(srcIp, srcPort, peerIp, @[peerPort])
       if i == -1:
         echo "Accepted connection, but no attempt found. Discarding."
+        peer.close()
         continue
       else:
         let attempt = puncher.acceptAttempts[i]