Index: app/models/tracker.rb
===================================================================
--- app/models/tracker.rb	(revision 16332)
+++ app/models/tracker.rb	(working copy)
@@ -18,10 +18,10 @@
 class Tracker < ActiveRecord::Base
   include Redmine::SafeAttributes
 
-  CORE_FIELDS_UNDISABLABLE = %w(project_id tracker_id subject description priority_id is_private).freeze
+  CORE_FIELDS_UNDISABLABLE = %w(project_id tracker_id subject priority_id is_private).freeze
   # Fields that can be disabled
   # Other (future) fields should be appended, not inserted!
-  CORE_FIELDS = %w(assigned_to_id category_id fixed_version_id parent_issue_id start_date due_date estimated_hours done_ratio).freeze
+  CORE_FIELDS = %w(assigned_to_id category_id fixed_version_id parent_issue_id start_date due_date estimated_hours done_ratio description).freeze
   CORE_FIELDS_ALL = (CORE_FIELDS_UNDISABLABLE + CORE_FIELDS).freeze
 
   before_destroy :check_integrity