diff --git a/mes_in_sct/app/action/CheckBomInfo.php b/mes_in_sct/app/action/CheckBomInfo.php
index c732203..3c82b9c 100644
--- a/mes_in_sct/app/action/CheckBomInfo.php
+++ b/mes_in_sct/app/action/CheckBomInfo.php
@@ -25,7 +25,7 @@ class CheckBomInfo
 
         //2.判断工序单元、设备编码是存在？
         $sql = "SELECT id FROM hf_mes_process_workingsubclass WHERE code='".$workingsubclass."'";
-        $ret = Db::fetch($sql);
+        $ret = Db::fetch($sql2);
         if(empty($ret)){
             throw new Exception("工序单元[$workingsubclass]不存在",4001);
         }