diff --git a/plugins/sub_organizations/db/migrate/20150508153119_add_timestamp_to_relation.rb b/plugins/sub_organizations/db/migrate/20150508153119_add_timestamp_to_relation.rb
new file mode 100644
index 0000000..e48d513
--- /dev/null
+++ b/plugins/sub_organizations/db/migrate/20150508153119_add_timestamp_to_relation.rb
@@ -0,0 +1,6 @@
+class AddTimestampToRelation < ActiveRecord::Migration
+  def change
+    add_column :sub_organizations_plugin_relations, :created_at, :datetime
+    add_column :sub_organizations_plugin_relations, :updated_at, :datetime
+  end
+end
diff --git a/plugins/sub_organizations/lib/sub_organizations_plugin/relation.rb b/plugins/sub_organizations/lib/sub_organizations_plugin/relation.rb
index 9530f39..bdb6421 100644
--- a/plugins/sub_organizations/lib/sub_organizations_plugin/relation.rb
+++ b/plugins/sub_organizations/lib/sub_organizations_plugin/relation.rb
@@ -1,6 +1,4 @@
 class SubOrganizationsPlugin::Relation < Noosfero::Plugin::ActiveRecord
-  record_timestamps = false
-
   belongs_to :parent, :polymorphic => true
   belongs_to :child, :polymorphic => true
 
--
libgit2 0.21.2