diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 8e57fab4d..ff937990b 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -738,7 +738,7 @@ class CoursesController < ApplicationController
       @user = User.find_by_id(CourseInfos.find_by_course_id(@course.id).user_id)
     end
 
-    sorted_events = sort_activity_events_course(events);
+    sorted_events = sort_activity_events_course(events)
     events = paginateHelper sorted_events,10
     @events_by_day = events.group_by {|event| User.current.time_to_date(event.event_datetime)}
     #  documents
diff --git a/app/views/courses/show.html.erb b/app/views/courses/show.html.erb
index 79cb267b4..9f2fe39df 100644
--- a/app/views/courses/show.html.erb
+++ b/app/views/courses/show.html.erb
@@ -14,7 +14,8 @@
                 <%= link_to_user_header("(#{e.event_author})", @canShowRealName,:class => 'problem_name c_orange fl') if @canShowRealName && e.respond_to?(:event_author) %>
                 <span class="fl"> &nbsp;</span>
                 <span class="fl"> <%= l(:label_new_activity) %>：</span>
-                <%= link_to "#{eventToLanguageCourse(e.event_type, @course)} "<< format_activity_title(e.event_title), (e.event_type.eql?("attachment")&&e.container.kind_of?(Course)) ? course_files_path(e.container) : e.event_url,:class => "problem_tit c_dblue fl fb"%>
+                <%= link_to "#{eventToLanguageCourse(e.event_type, @course)} "<< format_activity_title(e.event_title), (e.event_type.eql?("attachment")&&e.container.kind_of?(Course)) ? course_files_path(e.container) :
+                        (e.event_type.eql?("bid") ? homework_course_path(@course) : e.event_url),:class => "problem_tit c_dblue fl fb"%>
                 <br />
                 <p class="mt5 break_word"><%= e.event_description.html_safe %>
                   <br />