diff --git a/app/views/courses/join_course_multi_role.js.erb b/app/views/courses/join_course_multi_role.js.erb
index 97d6b33ce..a4762d62b 100644
--- a/app/views/courses/join_course_multi_role.js.erb
+++ b/app/views/courses/join_course_multi_role.js.erb
@@ -15,7 +15,7 @@ alert("班级已过期\n请联系班级管理员重启班级。(在配置班级
 alert("您已经加入了班级");
 window.location.href= "<%= Setting.protocol%>://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
 <% elsif @state == 4 %>
-alert("您加入的班级不存在");
+alert("您输入的邀请码错误");
 <% elsif @state == 5 %>
 alert("您还未登录");
 <% elsif @state == 6 %>