diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index bb1c32864..9938c3b0b 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -1195,7 +1195,7 @@ class CoursesController < ApplicationController
           teacher_role = 1
         end
 
-        if teacher_role && student_role
+        if (teacher_role && student_role) || message.to_s == "您已是课堂成员"
           render json: { status: 0, message: message, course_id: course.id}
         elsif student_role
           render json: { status: 0, message: "加入成功", course_id: course.id}