diff --git a/app/Service/DeviceServiceImp.php b/app/Service/DeviceServiceImp.php
index 61744c2..2b4962c 100644
--- a/app/Service/DeviceServiceImp.php
+++ b/app/Service/DeviceServiceImp.php
@@ -90,7 +90,7 @@ class DeviceServiceImp implements DeviceServiceInterFace
     public function pubMsgToStoreByDevName($dev_names, $msg)
     {
         foreach ($dev_names as $key => $dev_name) {
-            $this->IOTService->pub($dev_name, $msg);
+            $this->IOTService->pub($dev_name['device_name'], $msg);
         }
 
         return true;