diff --git a/app/views/layouts/base_courses.html.erb b/app/views/layouts/base_courses.html.erb
index bef5b7f4a..254b24f01 100644
--- a/app/views/layouts/base_courses.html.erb
+++ b/app/views/layouts/base_courses.html.erb
@@ -98,7 +98,7 @@
         <% unless show_nav?(@course.boards.first ? @course.boards.first.topics.count : 0) %>
         <div class="subNav">
           <%= link_to l(:label_course_board), course_boards_path(@course), :class => "f14 c_blue02" %>
-          <%= link_to "(#{@course.boards.first ? @course.boards.first.topics.count : 0})", course_boards_path(@course), :class => "subnav_num c_orange" %>
+          <%= link_to "(#{@course.boards.first ? (@course.boards.first.topics.count + Message.where("board_id =? and parent_id is not ?", @course.boards.first.id, nil).count) : 0})", course_boards_path(@course), :class => "subnav_num c_orange" %>
           <%= link_to( "",course_boards_path(@course, :flag => true, :is_new => 1), :class => 'courseMenuSetting', :title =>"#{l(:label_message_new)}") if User.current.member_of_course?(@course) && @course.boards.first %>
         </div>
         <% end %>