diff --git a/db/migrate/043_add_updated_at_to_todos.rb b/db/migrate/043_add_updated_at_to_todos.rb
index 992f2a92..ec14720a 100644
--- a/db/migrate/043_add_updated_at_to_todos.rb
+++ b/db/migrate/043_add_updated_at_to_todos.rb
@@ -1,8 +1,10 @@
 class AddUpdatedAtToTodos < ActiveRecord::Migration
   def self.up
       add_column :todos, :updated_at, :timestamp
-        end
-          def self.down
-              remove_column :todos, :updated_at
-                end
-                end
\ No newline at end of file
+      execute 'update todos set updated_at = created_at where completed_at IS NULL'
+      execute 'update todos set updated_at = completed_at where NOT completed_at IS NULL'
+  end
+  def self.down
+      remove_column :todos, :updated_at
+  end
+end