diff --git a/tcp_syni.nim b/tcp_syni.nim
index bc3a32c..651eda6 100644
--- a/tcp_syni.nim
+++ b/tcp_syni.nim
@@ -236,9 +236,9 @@ proc prepareAccept(attempt: AcceptAttempt) {.async.} =
       await connectFuture or sleepAsync(Timeout)
       if connectFuture.finished():
         echo "connected during accept phase"
+      sock.close()
     except OSError:
       discard
-    sock.close()
 
 proc doAccept(puncher: TcpSyniPuncher, srcIp: IpAddress,
               srcPort: Port) {.async.} =