diff --git a/app/views/users/_course_form.html.erb b/app/views/users/_course_form.html.erb
index 0e604f8b4..023b57506 100644
--- a/app/views/users/_course_form.html.erb
+++ b/app/views/users/_course_form.html.erb
@@ -32,6 +32,8 @@
 							</p></td>
 						</tr>
 						<tr><td>
+							
+						<!-- added by bai	 -->
 							<% @course = Course.find_by_extra(membership.project.identifier)%>
 							<% unless @course.nil? %>
 							<span class="font-lighter" style="float: left"><%= l(:label_main_teacher) %> : <%= link_to(@course.teacher.show_name, user_path(@course.teacher)) %></span>