tracker/http/server/server.go | 7 ++++++-

diff --git a/tracker/http/server/server.go b/tracker/http/server/server.go
index bd2783e35c48be579ef317ee0f8dddaaf34b4b74..9a21b8c1a9849e78f1c4cb937e414a02a2cb78c2 100644
--- a/tracker/http/server/server.go
+++ b/tracker/http/server/server.go
@@ -73,8 +73,12 @@ 		log.Printf("error getting requester IP: %v", err)
 		http.Error(w, "error determining your IP", http.StatusBadGateway)
 		return
 	}
-	portU64, err := strconv.ParseUint(vs.Get("port"), 0, 16)
+	portU64, _ := strconv.ParseUint(vs.Get("port"), 0, 16)
 	addrPort := netip.AddrPortFrom(addr, uint16(portU64))
+	left, err := strconv.ParseInt(vs.Get("left"), 0, 64)
+	if err != nil {
+		left = -1
+	}
 	res := me.Announce.Serve(
 		r.Context(),
 		tracker.AnnounceRequest{
@@ -83,6 +87,7 @@ 			PeerId:   peerId,
 			Event:    event,
 			Port:     addrPort.Port(),
 			NumWant:  -1,
+			Left:     left,
 		},
 		addrPort,
 		trackerServer.GetPeersOpts{