diff --git a/app/models/problem.rb b/app/models/problem.rb
--- a/app/models/problem.rb
+++ b/app/models/problem.rb
@@ -1,5 +1,7 @@
 class Problem < ActiveRecord::Base
 
+  belongs_to :description
+
   def self.find_available_problems
     find(:all, :conditions => {:available => true})
   end