diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 47d343e8f..1b186b5f2 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -749,7 +749,7 @@ module CoursesHelper
     if user.logged?
       joined = course.members.includes(:user).map{|member| member.user_id}.include? user.id
       text = joined ? l(:label_course_exit_student) : l(:label_course_join_student)
-      url = joined ? join_path(:object_id => course.id) : try_join_path(:object_id => course.id)
+      url = joined ? course_path(course.id) : try_join_path(:object_id => course.id)
       method = joined ? 'delete' : 'post'
       if joined
         link = link_to(text, url, :remote => true, :method => method, :class => "pr_join_a", :id => "#{course.id}", :confirm => l(:text_are_you_sure_out))