diff --git a/app/Http/Controllers/MachineController.php b/app/Http/Controllers/MachineController.php
index d6cd574..5cfb599 100644
--- a/app/Http/Controllers/MachineController.php
+++ b/app/Http/Controllers/MachineController.php
@@ -41,11 +41,11 @@ class MachineController extends Controller
             ], 403);
         }
 
-          $machines = Machine::with('plant')->with('line')->orderBy('plant_id')->get();
+          $machines = Machine::with('plant')->with('workGroupMaster')->orderBy('plant_id')->get();
           $machinesData = $machines->map(function($machine) {
               return [
                   'plant_code'          => $machine->plant ? (String)$machine->plant->code : "",
-                  'group_work_center'   => $machine->line->group_work_center ?? "",
+                  'group_work_center'   => $machine->workGroupMaster ? (String)$machine->workGroupMaster->name : "",
                   'work_center'         => $machine->work_center ?? "",
               ];
           });