diff --git a/app/common/Ideal/Repository.php b/app/common/Ideal/Repository.php
index af67721..e800bc6 100644
--- a/app/common/Ideal/Repository.php
+++ b/app/common/Ideal/Repository.php
@@ -63,9 +63,15 @@ abstract class Repository implements Define\Repository
         return $this->fetchMany($query);
     }
 
+    protected string $key = 'id';
+    public function setKey(string $key): Repository
+    {
+        $this->key = $key;
+        return $this;
+    }
     protected function getKey(): string
     {
-        return 'id';
+        return $this->key;
     }
     protected function parseData(Define\Model $model, ?array $data, Implement\Repository\MapperParser $data_map): Define\Model
     {
diff --git a/app/src/Repository/Venta/Unidad/Prorrateo.php b/app/src/Repository/Venta/Unidad/Prorrateo.php
index c5f5f76..6ac0ee0 100644
--- a/app/src/Repository/Venta/Unidad/Prorrateo.php
+++ b/app/src/Repository/Venta/Unidad/Prorrateo.php
@@ -12,7 +12,8 @@ class Prorrateo extends Ideal\Repository
     public function __construct(Define\Connection $connection, protected Repository\Venta\Unidad $unidadRepository)
     {
         parent::__construct($connection);
-        $this->setTable('unidad_prorrateo');
+        $this->setTable('unidad_prorrateo')
+            ->setKey('unidad_id');
     }
 
     public function create(?array $data = null): Model\Venta\Unidad\Prorrateo