diff --git a/lib/redmine.rb b/lib/redmine.rb
index 52e81b05b..55511c5b5 100644
--- a/lib/redmine.rb
+++ b/lib/redmine.rb
@@ -120,7 +120,7 @@ Redmine::AccessControl.map do |map|
 
   map.course_module :files do |map|
   #  map.permission :manage_files, {:files => [:new, :create]}, :require => :loggedin
-    map.permission :view_course_files, {:files => :index, :versions => :download}, :read => true
+    map.permission :view_course_files, {:files => :index, :versions => :download}, :read => true,:belong_to_course => true
   end
 
     map.course_module :news do |map|