diff --git a/modules/contrib/xmlsitemap/xmlsitemap_custom/src/Form/XmlSitemapCustomAddForm.php b/modules/contrib/xmlsitemap/xmlsitemap_custom/src/Form/XmlSitemapCustomAddForm.php
index 89a696e..83de2f4 100644
--- a/modules/contrib/xmlsitemap/xmlsitemap_custom/src/Form/XmlSitemapCustomAddForm.php
+++ b/modules/contrib/xmlsitemap/xmlsitemap_custom/src/Form/XmlSitemapCustomAddForm.php
@@ -90,8 +90,16 @@ public function getFormId() {
    */
   public function buildForm(array $form, FormStateInterface $form_state) {
     $query = $this->connection->select('xmlsitemap', 'x');
-    $query->addExpression('MAX(id)');
-    $id = $query->execute()->fetchField();
+    $query->fields('x', array('id'));
+    $id = $query->execute()->fetchAll();
+    $id_sort = array();
+
+    foreach($id as $id_num) {
+      $id_sort[] = intval($id_num->id);
+    }
+    rsort($id_sort);
+
+    $id = $id_sort[0];
     $link = array(
       'id' => $id + 1,
       'loc' => '',