diff --git a/install-dev/upgrade/sql/1.5.3.0.sql b/install-dev/upgrade/sql/1.5.3.0.sql
index a5f0a4023..abc00ff4a 100644
--- a/install-dev/upgrade/sql/1.5.3.0.sql
+++ b/install-dev/upgrade/sql/1.5.3.0.sql
@@ -24,7 +24,7 @@ INSERT INTO `PREFIX_configuration`(`name`, `value`, `date_add`, `date_upd`) VALU
 
 ALTER TABLE `PREFIX_order_cart_rule` CHANGE `name` `name` VARCHAR(254);
 
-ALTER TABLE `PREFIX_cart` CHANGE `delivery_option` `delivery_option` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '';
+ALTER TABLE `PREFIX_cart` CHANGE `delivery_option` `delivery_option` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
 
 ALTER TABLE `PREFIX_currency_shop` ADD `conversion_rate` DECIMAL( 13, 6 ) NOT NULL;
 UPDATE `PREFIX_currency_shop` a SET `conversion_rate` = (SELECT `conversion_rate` FROM `PREFIX_currency` b WHERE a.id_currency = b.id_currency);