diff --git a/app/enterprise/controller/Im.php b/app/enterprise/controller/Im.php
index a0c6cdf..eff447a 100644
--- a/app/enterprise/controller/Im.php
+++ b/app/enterprise/controller/Im.php
@@ -93,10 +93,10 @@ class Im extends BaseController
                     'displayName'=>$userInfo['realname']
                 ];
                 $msgInfo['is_group']=$is_group;
-                $message=new Message();
-                $data=$message->sendMessage($msgInfo,$this->globalConfig);
+                $messageModel=new Message();
+                $data=$messageModel->sendMessage($msgInfo,$this->globalConfig);
                 if(!$data){
-                    return warning($message->getError());
+                    return warning($messageModel->getError());
                 }
             }
         }catch(\Exception $e){