diff --git a/modules/articoli/ajax/select.php b/modules/articoli/ajax/select.php
index 8b2a73df9..ef6e172c9 100755
--- a/modules/articoli/ajax/select.php
+++ b/modules/articoli/ajax/select.php
@@ -244,7 +244,7 @@ switch ($resource) {
                 $filter[] = '`id`='.prepare($element);
             }
 
-            $where[] = '`parent`='.prepare($superselect['`id_categoria`']);
+            $where[] = '`parent`='.prepare($superselect['id_categoria']);
 
             if (!empty($search)) {
                 $search_fields[] = '`nome` LIKE '.prepare('%'.$search.'%');