diff --git a/classes/Product.php b/classes/Product.php
index af4921a71..3a87dc936 100644
--- a/classes/Product.php
+++ b/classes/Product.php
@@ -4876,7 +4876,7 @@ class ProductCore extends ObjectModel
 					$result[] = array_merge($attribute, $group[0]);
 				}
 				$values_not_custom = Db::getInstance()->executeS('
-				SELECT DISTINCT a.`id_attribute`, a.`id_attribute_group`, a.`id_attribute_group`, al.`name` as `attribute`, agl.`name` as `group`
+				SELECT DISTINCT a.`id_attribute`, a.`id_attribute_group`, al.`name` as `attribute`, agl.`name` as `group`
 				FROM `'._DB_PREFIX_.'attribute` a
 				LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al
 					ON (a.`id_attribute` = al.`id_attribute` AND al.`id_lang` = '.(int)Context::getContext()->language->id.')