diff --git a/lib/technoweenie/attachment_fu/backends/db_file_backend.rb b/lib/technoweenie/attachment_fu/backends/db_file_backend.rb
index 23881e75..cf7f4e81 100644
--- a/lib/technoweenie/attachment_fu/backends/db_file_backend.rb
+++ b/lib/technoweenie/attachment_fu/backends/db_file_backend.rb
@@ -29,11 +29,12 @@ def save_to_storage
             if save_attachment?
               (db_file || build_db_file).data = temp_data
               db_file.save!
-              self.class.update_all ['db_file_id = ?', self.db_file_id = db_file.id], ['id = ?', id]
+              self.db_file_id = db_file.id
+              self.class.where(:id => id).update_all(:db_file_id => db_file.id)
             end
             true
           end
       end
     end
   end
-end
\ No newline at end of file
+end