diff --git a/tcp_syni.nim b/tcp_syni.nim
index c4f4fc4..e3c48db 100644
--- a/tcp_syni.nim
+++ b/tcp_syni.nim
@@ -254,7 +254,7 @@ proc doAccept(puncher: TcpSyniPuncher, srcIp: IpAddress,
   sock.close()
 
 proc injectSynPackets(attempt: AcceptAttempt) {.async.} =
-  let rawFd = setupTcpInjectingSocket()
+  let injectFd = setupTcpInjectingSocket()
   for dstPort in attempt.dstPorts:
     let synOut = IpPacket(protocol: tcp, ipAddrSrc: attempt.srcIp,
                           ipAddrDst: attempt.dstIp, ipTTL: 2,
@@ -262,7 +262,7 @@ proc injectSynPackets(attempt: AcceptAttempt) {.async.} =
                           tcpSeqNumber: rand(uint32), tcpAckNumber: 0,
                           tcpFlags: {SYN}, tcpWindowSize: 1452 * 10)
     echo &"[{synOut.ipAddrSrc}:{synOut.tcpPortSrc} -> {synOut.ipAddrDst}:{synOut.tcpPortDst}, SEQ {synOut.tcpSeqNumber}] injecting outgoing SYN"
-    await rawFd.injectTcpPacket(synOut)
+    await injectFd.injectTcpPacket(synOut)
     for seqNum in attempt.seqNums:
       let synIn = IpPacket(protocol: tcp, ipAddrSrc: attempt.dstIp,
                            ipAddrDst: attempt.srcIp, ipTTL: 64,
@@ -271,8 +271,8 @@ proc injectSynPackets(attempt: AcceptAttempt) {.async.} =
                            tcpSeqNumber: seqNum, tcpAckNumber: 0,
                            tcpFlags: {SYN}, tcpWindowSize: 1452 * 10)
       echo &"[{synIn.ipAddrSrc}:{synIn.tcpPortSrc} -> {synIn.ipAddrDst}:{synIn.tcpPortDst}, SEQ {synIn.tcpSeqNumber}] injecting incoming SYN"
-      await rawFd.injectTcpPacket(synIn)
-  closeSocket(rawFd)
+      await injectFd.injectTcpPacket(synIn)
+  closeSocket(injectFd)
 
 proc accept*(puncher: TcpSyniPuncher, srcPort: Port, dstIp: IpAddress,
              dstPorts: seq[Port],