diff --git a/vendor/built_in_modules/personal_conference/app/controllers/panel/personal_conference/desktop/conference_co_author_relations_controller.rb b/vendor/built_in_modules/personal_conference/app/controllers/panel/personal_conference/desktop/conference_co_author_relations_controller.rb
index 62ad9fa7..696cc490 100644
--- a/vendor/built_in_modules/personal_conference/app/controllers/panel/personal_conference/desktop/conference_co_author_relations_controller.rb
+++ b/vendor/built_in_modules/personal_conference/app/controllers/panel/personal_conference/desktop/conference_co_author_relations_controller.rb
@@ -40,6 +40,7 @@ class Panel::PersonalConference::Desktop::ConferenceCoAuthorRelationsController
     if @conference_co_author_relation.update_attributes(params[:conference_co_author_relation])
       @conference_co_author_relations = ConferenceCoAuthorRelation.all
       newv = render_to_string partial: "show_form", object: @conference_co_author_relations
+      newv = '<div class="overview" content-layout="datalist" per-column="4" base-width="300">' + newv + '</div>'
       render json: {success: true, msg: t('update_success'), newvalue: newv}.to_json
     else
       error_msg = @conference_co_author.errors.full_messages.join("<br />")