diff --git a/htdocs/product/inventory/class/inventory.class.php b/htdocs/product/inventory/class/inventory.class.php
index b224667f1c6..b972e44245b 100644
--- a/htdocs/product/inventory/class/inventory.class.php
+++ b/htdocs/product/inventory/class/inventory.class.php
@@ -101,7 +101,7 @@ class Inventory extends CommonObject
 		'title'          => array('type'=>'varchar(255)', 'label'=>'Label', 'visible'=>1, 'enabled'=>1, 'position'=>25, 'css'=>'minwidth300', 'csslist'=>'tdoverflowmax200'),
 		'fk_warehouse'   => array('type'=>'integer:Entrepot:product/stock/class/entrepot.class.php', 'label'=>'Warehouse', 'visible'=>1, 'enabled'=>1, 'position'=>30, 'index'=>1, 'help'=>'InventoryForASpecificWarehouse', 'picto'=>'stock', 'css'=>'minwidth300 maxwidth500 widthcentpercentminusx', 'csslist'=>'tdoverflowmax200'),
 		'fk_product'     => array('type'=>'integer:Product:product/class/product.class.php', 'label'=>'Product', 'visible'=>1, 'enabled'=>1, 'position'=>32, 'index'=>1, 'help'=>'InventoryForASpecificProduct', 'picto'=>'product', 'css'=>'minwidth300 maxwidth500 widthcentpercentminusx', 'csslist'=>'tdoverflowmax200'),
-		'date_inventory' => array('type'=>'date', 'label'=>'DateValue', 'visible'=>1, 'enabled'=>0, 'position'=>35),	// This date is not used so disabled.
+		'date_inventory' => array('type'=>'date', 'label'=>'DateValue', 'visible'=>1, 'enabled'=>'$conf->global->STOCK_INVENTORY_ADD_A_VALUE_DATE', 'position'=>35),	// This date is not used so disabled by default.
 		'date_creation' => array('type'=>'datetime', 'label'=>'DateCreation', 'enabled'=>1, 'visible'=>-2, 'notnull'=>1, 'position'=>500),
 		'tms'           => array('type'=>'timestamp', 'label'=>'DateModification', 'enabled'=>1, 'visible'=>-2, 'notnull'=>1, 'position'=>501),
 		'date_validation' => array('type'=>'datetime', 'label'=>'DateValidation', 'visible'=>-2, 'enabled'=>1, 'position'=>502),