diff --git a/app/common/service/SendMsgCronJobService.php b/app/common/service/SendMsgCronJobService.php
index 6869f4e..db09677 100644
--- a/app/common/service/SendMsgCronJobService.php
+++ b/app/common/service/SendMsgCronJobService.php
@@ -902,7 +902,7 @@ class SendMsgCronJobService
                 'end_time' => $student_homework->end_time,
                 'en_start_time' => $student_homework->en_start_time,
                 'en_end_time' => $student_homework->en_end_time,
-                'send_role' => 'student',
+                'send_role' => 'teacher',
                 'send_data' => json_encode($send_teacher_data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
                 'msg_info' => json_encode($student_homework->toArray(), JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
                 'send_result' => $result['code'] == ResponseCode::SUCCESS ? 1 : 0,