diff --git a/src/server/game/register_network_func.go b/src/server/game/register_network_func.go
index c4c3e8fc..bdc540e3 100644
--- a/src/server/game/register_network_func.go
+++ b/src/server/game/register_network_func.go
@@ -31,6 +31,7 @@ import (
 	GoUtil "server/game_util"
 	"server/msg"
 	"strconv"
+	"strings"
 
 	"server/pkg/github.com/name5566/leaf/gate"
 	"server/pkg/github.com/name5566/leaf/log"
@@ -3003,15 +3004,15 @@ func ReqGetInviteReward(player *Player, buf []byte) error {
 	})
 	player.PushClientRes(InviteMod.BackData())
 
-	Str := ""
+	playerIds := make([]string, 0)
 	for k := range InviteMod.InviteList {
-		Str += strconv.Itoa(k) + ","
+		playerIds = append(playerIds, GoUtil.String(k))
 	}
 	player.TeLog("register_invite_reward", map[string]interface{}{
 		"register_type":  "facebook",
 		"item_id":        Items,
 		"register_score": InviteMod.GetIndex,
-		"player_id":      Str,
+		"player_id":      strings.Join(playerIds, ","),
 		"is_npc":         len(InviteMod.InviteList) == 1,
 	})
 	return nil