diff --git a/classes/Zone.php b/classes/Zone.php
index e1d72bd5a..5306e9776 100644
--- a/classes/Zone.php
+++ b/classes/Zone.php
@@ -33,9 +33,6 @@ class ZoneCore extends ObjectModel
 	/** @var boolean Zone status */
 	public $active = true;
 
-	/* @todo Obsolete; to remove */
-	public $eu_zone = false;
-
 	/**
 	 * @see ObjectModel::$definition
 	 */
@@ -48,7 +45,6 @@ class ZoneCore extends ObjectModel
 		),
 	);
 
-
 	protected $webserviceParameters = array();
 
 	/**
@@ -60,10 +56,11 @@ class ZoneCore extends ObjectModel
 	public static function getZones($active = false)
 	{
 		return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('
-		SELECT *
-		FROM `'._DB_PREFIX_.'zone`
-		'.($active ? 'WHERE active = 1' : '').'
-		ORDER BY `name` ASC');
+			SELECT *
+			FROM `'._DB_PREFIX_.'zone`
+			'.($active ? 'WHERE active = 1' : '').'
+			ORDER BY `name` ASC
+		');
 	}
 
 	/**
@@ -75,9 +72,10 @@ class ZoneCore extends ObjectModel
 	public static function getIdByName($name)
 	{
 		return Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
-		SELECT `id_zone`
-		FROM `'._DB_PREFIX_.'zone`
-		WHERE `name` = \''.pSQL($name).'\'');
+			SELECT `id_zone`
+			FROM `'._DB_PREFIX_.'zone`
+			WHERE `name` = \''.pSQL($name).'\'
+		');
 	}
 
 	/**
@@ -89,11 +87,11 @@ class ZoneCore extends ObjectModel
 	{
 		if (parent::delete())
 		{
-			/* Delete regarding delivery preferences */
+			// Delete regarding delivery preferences
 			$result = Db::getInstance()->execute('DELETE FROM '._DB_PREFIX_.'carrier_zone WHERE id_zone = '.(int)$this->id);
 			$result &= Db::getInstance()->execute('DELETE FROM '._DB_PREFIX_.'delivery WHERE id_zone = '.(int)$this->id);
 
-			/* Update Country & state zone with 0 */
+			// Update Country & state zone with 0
 			$result &= Db::getInstance()->execute('UPDATE '._DB_PREFIX_.'country SET id_zone = 0 WHERE id_zone = '.(int)$this->id);
 			$result &= Db::getInstance()->execute('UPDATE '._DB_PREFIX_.'state SET id_zone = 0 WHERE id_zone = '.(int)$this->id);