diff --git a/classes/Carrier.php b/classes/Carrier.php
index 1f6ae0097..f3d1cad6c 100644
--- a/classes/Carrier.php
+++ b/classes/Carrier.php
@@ -110,8 +110,6 @@ class CarrierCore extends ObjectModel
 	/** @var int grade of the shipping delay (0 for longest, 9 for shortest) */
 	public $grade;
 
-	protected $langMultiShop = true;
-
 	protected $fieldsRequired = array('name', 'active');
 	protected $fieldsSize = array('name' => 64, 'grade' => 1);
 	protected $fieldsValidate = array('id_tax_rules_group' => 'isInt', 'name' => 'isCarrierName', 'active' => 'isBool',
@@ -126,6 +124,7 @@ class CarrierCore extends ObjectModel
 		'table' => 'carrier',
 		'primary' => 'id_carrier',
 		'multilang' => true,
+		'multishop' => true,
 	);
 
 	protected static $price_by_weight = array();
diff --git a/classes/Category.php b/classes/Category.php
index 061ccc725..c3d554814 100644
--- a/classes/Category.php
+++ b/classes/Category.php
@@ -74,8 +74,6 @@ class CategoryCore extends ObjectModel
 	/** @var string Object last modification date */
 	public $date_upd;
 
-	protected $langMultiShop = true;
-
 	public $groupBox;
 
 	protected static $_links = array();
@@ -107,6 +105,7 @@ class CategoryCore extends ObjectModel
 		'table' => 'category',
 		'primary' => 'id_category',
 		'multilang' => true,
+		'multishop' => true,
 	);
 
 	/** @var string id_image is the category ID when an image exists and 'default' otherwise */
diff --git a/classes/Meta.php b/classes/Meta.php
index f01bae43c..735747a02 100644
--- a/classes/Meta.php
+++ b/classes/Meta.php
@@ -42,12 +42,11 @@ class MetaCore extends ObjectModel
 	protected	$fieldsSizeLang = array('title' => 128, 'description' => 255, 'keywords' => 255, 'url_rewrite' => 255);
 	protected	$fieldsValidateLang = array('title' => 'isGenericName', 'description' => 'isGenericName', 'keywords' => 'isGenericName', 'url_rewrite' => 'isLinkRewrite');
 
-	protected	$langMultiShop = true;
-
 	public static $definition = array(
 		'table' => 'meta',
 		'primary' => 'id_meta',
 		'multilang' => true,
+		'multishop' => true,
 	);
 
 	public function getFields()
diff --git a/classes/ObjectModel.php b/classes/ObjectModel.php
index 9e3ddce63..24ded5b09 100644
--- a/classes/ObjectModel.php
+++ b/classes/ObjectModel.php
@@ -70,8 +70,6 @@ abstract class ObjectModelCore
  	/** @var array Multilingual fields validity functions for admin panel forms */
  	protected $fieldsValidateLang = array();
 
- 	protected $langMultiShop = false;
-
 	/** @var array tables */
  	protected $tables = array();
 
@@ -92,6 +90,11 @@ abstract class ObjectModelCore
 	 */
 	public static $definition = array();
 
+	/**
+	 * @var array Contain current object definition
+	 */
+	protected $def;
+
 	/**
 	 * Returns object validation rules (fields validity)
 	 *
@@ -128,23 +131,23 @@ abstract class ObjectModelCore
 	{
 		// For retrocompatibility, we continue to use $this->table and $this->identifier property.
 		// When all objects will implement $definition static in 1.6, we will remove it.
-		$definition = self::getDefinition($this);
-		if (isset($definition['table']))
-			$this->table = $definition['table'];
-		if (isset($definition['primary']))
-			$this->identifier = $definition['primary'];
+		$this->def = self::getDefinition($this);
+		if (isset($this->def['table']))
+			$this->table = $this->def['table'];
+		if (isset($this->def['primary']))
+			$this->identifier = $this->def['primary'];
 
 
 		if (!is_null($id_lang))
 			$this->id_lang = (Language::getLanguage($id_lang) !== false) ? $id_lang : Configuration::get('PS_LANG_DEFAULT');
 
-		if ($id_shop && $this->langMultiShop)
+		if ($id_shop && $this->isLangMultishop())
 		{
 			$this->id_shop = (int)$id_shop;
 			$this->getShopFromContext = false;
 		}
 
-		if ($this->langMultiShop && !$this->id_shop)
+		if ($this->isLangMultishop() && !$this->id_shop)
 			$this->id_shop = Context::getContext()->shop->getID(true);
 
 	 	if (!Validate::isTableOrIdentifier($this->identifier) || !Validate::isTableOrIdentifier($this->table))
@@ -326,7 +329,7 @@ abstract class ObjectModelCore
 							throw new PrestashopException('key '.$key.' is not a valid table or identifier');
 
 					// If this table is linked to multishop system, update / insert for all shops from context
-					if ($this->langMultiShop)
+					if ($this->isLangMultishop())
 					{
 						$listShops = ($this->id_shop && !$this->getShopFromContext) ? array($this->id_shop) : Context::getContext()->shop->getListOfID();
 						foreach ($listShops as $shop)
@@ -469,7 +472,7 @@ abstract class ObjectModelCore
 	{
 		$fields[$id_language]['id_lang'] = $id_language;
 		$fields[$id_language][$this->identifier] = (int)($this->id);
-		if ($this->id_shop AND $this->langMultiShop)
+		if ($this->id_shop && $this->isLangMultishop())
 			$fields[$id_language]['id_shop'] = (int)$this->id_shop;
 		foreach ($fieldsArray as $k => $field)
 		{
@@ -908,7 +911,7 @@ abstract class ObjectModelCore
 
 	public function isLangMultishop()
 	{
-		return (int)$this->langMultiShop;
+		return isset($this->def['multishop']) && $this->def['multishop'] && isset($this->def['multilang']) && $this->def['multilang'];
 	}
 
 	/**
diff --git a/classes/Product.php b/classes/Product.php
index 625617a39..e79d9eb11 100644
--- a/classes/Product.php
+++ b/classes/Product.php
@@ -190,8 +190,6 @@ class ProductCore extends ObjectModel
 
 	public $isFullyLoaded = false;
 
-	protected $langMultiShop = true;
-
 	public $cache_is_pack;
 	public $cache_has_attachments;
 	public $is_virtual;
@@ -265,6 +263,7 @@ class ProductCore extends ObjectModel
 		'table' => 'product',
 		'primary' => 'id_product',
 		'multilang' => true,
+		'multishop' => true,
 	);
 
 	protected $webserviceParameters = array(