diff --git a/htdocs/core/modules/modStock.class.php b/htdocs/core/modules/modStock.class.php
index 654801007a2..1c0393b3653 100644
--- a/htdocs/core/modules/modStock.class.php
+++ b/htdocs/core/modules/modStock.class.php
@@ -168,19 +168,22 @@ class modStock extends DolibarrModules
 		$this->export_code[$r]=$this->rights_class;
 		$this->export_label[$r]="WarehousesAndProducts";	// Translation key (used only if key ExportDataset_xxx_z not found)
 		$this->export_permission[$r]=array(array("stock","lire"));
-		$this->export_fields_array[$r]=array('e.rowid'=>'IdWarehouse','e.ref'=>'LocationSummary','e.description'=>'DescWareHouse','e.lieu'=>'LieuWareHouse','e.address'=>'Address','e.zip'=>'Zip','e.town'=>'Town','p.rowid'=>"ProductId",'p.ref'=>"Ref",'p.fk_product_type'=>"Type",'p.label'=>"Label",'p.description'=>"Description",'p.note'=>"Note",'p.price'=>"Price",'p.tva_tx'=>'VAT','p.tosell'=>"OnSell",'p.tobuy'=>'OnBuy','p.duration'=>"Duration",'p.datec'=>'DateCreation','p.tms'=>'DateModification','p.pmp'=>'PMPValue','p.cost_price'=>'CostPrice','ps.reel'=>'Stock');
+		$this->export_fields_array[$r]=array('e.rowid'=>'IdWarehouse','e.ref'=>'LocationSummary','e.description'=>'DescWareHouse','e.lieu'=>'LieuWareHouse','e.address'=>'Address','e.zip'=>'Zip','e.town'=>'Town','p.rowid'=>"ProductId",'p.ref'=>"Ref",'p.fk_product_type'=>"Type",'p.label'=>"Label",'p.description'=>"Description",'p.note'=>"Note",'p.price'=>"Price",'p.tva_tx'=>'VAT','p.tosell'=>"OnSell",'p.tobuy'=>'OnBuy','p.duration'=>"Duration",'p.datec'=>'DateCreation','p.tms'=>'DateModification','p.pmp'=>'PMPValue','p.cost_price'=>'CostPrice');
 		$this->export_TypeFields_array[$r]=array('e.rowid'=>'List:entrepot:ref','e.ref'=>'Text','e.lieu'=>'Text','e.address'=>'Text','e.zip'=>'Text','e.town'=>'Text','p.rowid'=>"List:product:label",'p.ref'=>"Text",'p.fk_product_type'=>"Text",'p.label'=>"Text",'p.description'=>"Text",'p.note'=>"Text",'p.price'=>"Numeric",'p.tva_tx'=>'Numeric','p.tosell'=>"Boolean",'p.tobuy'=>"Boolean",'p.duration'=>"Duree",'p.datec'=>'Date','p.tms'=>'Date','p.pmp'=>'Numeric','p.cost_price'=>'Numeric','ps.reel'=>'Numeric');
 		$this->export_entities_array[$r]=array('e.rowid'=>'warehouse','e.ref'=>'warehouse','e.description'=>'warehouse','e.lieu'=>'warehouse','e.address'=>'warehouse','e.zip'=>'warehouse','e.town'=>'warehouse','p.rowid'=>"product",'p.ref'=>"product",'p.fk_product_type'=>"product",'p.label'=>"product",'p.description'=>"product",'p.note'=>"product",'p.price'=>"product",'p.tva_tx'=>'product','p.tosell'=>"product",'p.tobuy'=>"product",'p.duration'=>"product",'p.datec'=>'product','p.tms'=>'product','p.pmp'=>'product','p.cost_price'=>'product','ps.reel'=>'stock');
 		$this->export_aggregate_array[$r]=array('ps.reel'=>'SUM');    // TODO Not used yet
 		$this->export_dependencies_array[$r]=array('stock'=>array('p.rowid','e.rowid')); // We must keep this until the aggregate_array is used. To add unique key if we ask a field of a child to avoid the DISTINCT to discard them.
 		$keyforselect='product'; $keyforelement='product'; $keyforaliasextra='extra';
 		include DOL_DOCUMENT_ROOT.'/core/extrafieldsinexport.inc.php';
+		$this->export_fields_array[$r]=array_merge($this->export_fields_array[$r],array('ps.reel'=>'Stock'));
+
 		$this->export_sql_start[$r]='SELECT DISTINCT ';
-		$this->export_sql_end[$r]  =' FROM '.MAIN_DB_PREFIX.'product as p, '.MAIN_DB_PREFIX.'product_stock as ps, '.MAIN_DB_PREFIX.'entrepot as e';
+		$this->export_sql_end[$r]  =' FROM '.MAIN_DB_PREFIX.'product as p LEFT JOIN '.MAIN_DB_PREFIX.'product_extrafields as extra ON extra.fk_object = p.rowid, '.MAIN_DB_PREFIX.'product_stock as ps, '.MAIN_DB_PREFIX.'entrepot as e';
 		$this->export_sql_end[$r] .=' WHERE p.rowid = ps.fk_product AND ps.fk_entrepot = e.rowid';
 		$this->export_sql_end[$r] .=' AND e.entity IN ('.getEntity('stock').')';
 		if ($conf->productbatch->enabled)
 		{
+			// Export of stock including lot number
 			$langs->load("productbatch");
 
 			// This request is same than previous but without field ps.stock (real stock in warehouse) and with link to subtable productbatch
@@ -205,6 +208,7 @@ class modStock extends DolibarrModules
 			$this->export_sql_end[$r] .=' AND e.entity IN ('.getEntity('stock').')';
 		}
 
+		// Export of stock movement
 		$r++;
 		$this->export_code[$r]=$this->rights_class.'_movement';
 		$this->export_label[$r]="StockMovements";	// Translation key (used only if key ExportDataset_xxx_z not found)