diff --git a/app/views/layouts/base_courses.html.erb b/app/views/layouts/base_courses.html.erb
index 800f2ff9d..fe0b5ef84 100644
--- a/app/views/layouts/base_courses.html.erb
+++ b/app/views/layouts/base_courses.html.erb
@@ -1,5 +1,5 @@
 <%# course_model %>
-<% teacher_num = teacherCount(@course) %>
+<% teacher_num = searchTeacherAndAssistant(@course).count %>
 <% student_num = studentCount(@course) %>
 <% course_file_num = visable_attachemnts_incourse(@course).count%>
 <% is_teacher = User.current.logged? && (User.current.admin? || User.current.allowed_to?(:as_teacher,@course)) %>