diff --git a/app/models/event/particulars.rb b/app/models/event/particulars.rb
index 31ecd66bfa..de8cecf26e 100644
--- a/app/models/event/particulars.rb
+++ b/app/models/event/particulars.rb
@@ -2,6 +2,7 @@ module Event::Particulars
   extend ActiveSupport::Concern
 
   included do
+    attribute :particulars, :json
     store_accessor :particulars, :assignee_ids
   end
 
diff --git a/app/models/filter/fields.rb b/app/models/filter/fields.rb
index 0e1c62e0a4..fbbc8c3b09 100644
--- a/app/models/filter/fields.rb
+++ b/app/models/filter/fields.rb
@@ -30,6 +30,7 @@ def indexed_by_human_name(index)
   end
 
   included do
+    attribute :fields, :json
     store_accessor :fields, :assignment_status, :indexed_by, :sorted_by, :terms,
       :card_ids, :creation, :closure