diff --git a/src/Libs/ModelMySQL.php b/src/Libs/ModelMySQL.php
index 975d955..90fae24 100644
--- a/src/Libs/ModelMySQL.php
+++ b/src/Libs/ModelMySQL.php
@@ -160,7 +160,7 @@ class ModelMySQL {
   * @return ModelMySQL
   *   Retorna un objeto de la clase actual.
   */
-  public function getInstance($elem = []) {
+  public static function getInstance($elem = []) {
     $class = get_called_class();
     $instace = new $class;