diff --git a/app/models/call_for_papers.rb b/app/models/call_for_papers.rb
index 6dcef8d7..17dd74e8 100644
--- a/app/models/call_for_papers.rb
+++ b/app/models/call_for_papers.rb
@@ -1,7 +1,8 @@
 class CallForPapers < ActiveRecord::Base
-  attr_accessible :start_date, :end_date, :hard_deadline, :description, :schedule_changes
+  attr_accessible :start_date, :end_date, :hard_deadline, :description, :schedule_changes, :rating, :rating_desc
   belongs_to :conference
 
   validates_presence_of :start_date, :end_date, :hard_deadline
+  validates :rating, :numericality => { :greater_than_or_equal_to => 2, :less_than_or_equal_to => 10 }
 
-end
\ No newline at end of file
+end