diff --git a/app/models/notification_service.rb b/app/models/notification_service.rb
index 4dd08ba..cd24a73 100644
--- a/app/models/notification_service.rb
+++ b/app/models/notification_service.rb
@@ -8,7 +8,7 @@ class NotificationService
   field :api_token, :type => String
   field :subdomain, :type => String
   field :sender_name, :type => String
-  
+
   embedded_in :app, :inverse_of => :notification_service
 
   validate :check_params
@@ -34,4 +34,8 @@ class NotificationService
   def configured?
     api_token.present?
   end
+
+  def problem_url(problem)
+    "http://#{Errbit::Config.host}/apps/#{problem.app.id}/problems/#{problem.id}"
+  end
 end
--
libgit2 0.21.2