diff --git a/xray/process.go b/xray/process.go
index ca91f5855..a9963bc38 100644
--- a/xray/process.go
+++ b/xray/process.go
@@ -252,6 +252,9 @@ func (p *process) GetTraffic(reset bool) ([]*Traffic, error) {
 	traffics := make([]*Traffic, 0)
 	for _, stat := range resp.GetStat() {
 		matchs := trafficRegex.FindStringSubmatch(stat.Name)
+		if len(matchs) < 4 {
+			continue
+		}
 		isInbound := matchs[1] == "inbound"
 		tag := matchs[2]
 		isDown := matchs[3] == "downlink"