diff --git a/src/app/doctype/controllers/FirstLevelController.php b/src/app/doctype/controllers/FirstLevelController.php
index c4987699fd8988109de9fdf48a2226ed2dd97664..aa531ce9d0c3d74211ac2d6191c1a89d34fa609d 100755
--- a/src/app/doctype/controllers/FirstLevelController.php
+++ b/src/app/doctype/controllers/FirstLevelController.php
@@ -34,16 +34,19 @@ class FirstLevelController
 
     public static function getTreeFunction()
     {
-        $firstLevels = FirstLevelModel::get(['where' => ['enabled = ?'], 'data' => ['Y'], 'order_by' => ['doctypes_first_level_id asc']]);
+        $firstLevels = FirstLevelModel::get([
+            'where'    => ['enabled = ?'], 
+            'data'     => ['Y'], 
+            'orderBy'  => ['doctypes_first_level_label asc']]);
         $secondLevels = SecondLevelModel::get([
             'where'    => ['enabled = ?'],
             'data'     => ['Y'],
-            'order_by' => ['doctypes_second_level_label asc']
+            'orderBy'  => ['doctypes_second_level_label asc']
         ]);
         $docTypes = DoctypeModel::get([
             'where'    => ['enabled = ?'],
             'data'     => ['Y'],
-            'order_by' => ['description asc']
+            'orderBy'  => ['description asc']
         ]);
 
         $structure = [];