diff --git a/app/controllers/tables_arrangements_controller.rb b/app/controllers/tables_arrangements_controller.rb
index ba2eea3..689949c 100644
--- a/app/controllers/tables_arrangements_controller.rb
+++ b/app/controllers/tables_arrangements_controller.rb
@@ -8,6 +8,7 @@ class TablesArrangementsController < ApplicationController
   def show
     Seat.joins(guest: :group)
         .where(tables_arrangement_id: params[:id])
+        .order('guests.group_id')
         .pluck(
           :table_number,
           Arel.sql("guests.first_name || ' ' || guests.last_name "), 'guests.id',