diff --git a/app/Models/MpBalance.php b/app/Models/MpBalance.php
index 784d1e1..1cd9c82 100644
--- a/app/Models/MpBalance.php
+++ b/app/Models/MpBalance.php
@@ -18,7 +18,7 @@ class MpBalance extends Model
      */
     public static function getBalance($uid,$uType=0)
     {
-        $row = self::where(['user_id'=>$uid,'user_type'=>$uType])->first();
+        $row = self::where(['source_id'=>$uid,'user_type'=>$uType])->first();
         if ($row){
             return $row->balance;
         }else{