diff --git a/util/outJson.go b/util/outJson.go
index 0468afa..c683b3f 100644
--- a/util/outJson.go
+++ b/util/outJson.go
@@ -8,6 +8,10 @@ import (
 
 // Fill Inbound's out_json
 func FillOutJson(i *model.Inbound, hostname string) error {
+	switch i.Type {
+	case "direct", "tun", "redirect", "tproxy":
+		return nil
+	}
 	var outJson map[string]interface{}
 	err := json.Unmarshal(i.OutJson, &outJson)
 	if err != nil {