diff --git a/app/Services/Tg/Hook/Dog.php b/app/Services/Tg/Hook/Dog.php
index 479615c7..a0dd2e5f 100755
--- a/app/Services/Tg/Hook/Dog.php
+++ b/app/Services/Tg/Hook/Dog.php
@@ -538,6 +538,9 @@ class Dog extends Mod\Base {
     
     public function toJson($aData)
     {
+        if (is_string($aData)) {
+            return $aData;
+        }
 
         if ($this->aMsg && !is_string($aData)) {
             if (is_object($aData)) {