diff --git a/app/models/course.rb b/app/models/course.rb
index 196e7168d..26cba8a75 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -35,8 +35,8 @@ class Course < ActiveRecord::Base
   acts_as_nested_set :order => 'name', :dependent => :destroy
   acts_as_attachable :view_permission => :view_course_files,
                      :delete_permission => :manage_files
-
-  validates_presence_of :password, :term,:name
+  
+  validates_presence_of :password, :term,:name,
   validates_format_of  :class_period, :with =>/^[1-9]\d*$/
   validates_format_of  :name,:with =>/^[a-zA-Z0-9_\u4e00-\u9fa5]+$/
   validates_length_of :description, :maximum => 10000