diff --git a/htdocs/core/class/conf.class.php b/htdocs/core/class/conf.class.php
index 3191e5edd47..39600605414 100644
--- a/htdocs/core/class/conf.class.php
+++ b/htdocs/core/class/conf.class.php
@@ -437,8 +437,8 @@ class Conf
 		$this->service->dir_temp				= $rootfortemp."/produit/temp";
 
 		// Module productbatch
-		$this->productbatch->multidir_output = array($this->entity => $rootfordata."/produitlot");
-		$this->productbatch->multidir_temp = array($this->entity => $rootfortemp."/produitlot/temp");
+		$this->productbatch->multidir_output = array($this->entity => $rootfordata."/productlot");
+		$this->productbatch->multidir_temp = array($this->entity => $rootfortemp."/productlot/temp");
 
 		// Module contrat
 		$this->contrat->multidir_output = array($this->entity => $rootfordata."/contract");
diff --git a/htdocs/product/stock/productlot_card.php b/htdocs/product/stock/productlot_card.php
index 8601ce25ebc..0968e2ea7ce 100644
--- a/htdocs/product/stock/productlot_card.php
+++ b/htdocs/product/stock/productlot_card.php
@@ -397,7 +397,7 @@ if (empty($action))
 	print '<a name="builddoc"></a>'; // ancre
 
 	// Documents
-	$filedir = $conf->productbatch->multidir_output[$object->entity].'/'.get_exdir(0, 0, 0, 0, $object, 'product_batch').dol_sanitizeFileName($object->ref);
+	$filedir = $conf->productbatch->multidir_output[$object->entity].'/'.get_exdir(0, 0, 0, 0, $object, 'product_batch');
 	$urlsource = $_SERVER["PHP_SELF"]."?id=".$object->id;
 	$genallowed = $usercanread;
 	$delallowed = $usercancreate;
diff --git a/htdocs/product/stock/productlot_document.php b/htdocs/product/stock/productlot_document.php
index 535486f8c62..2882bbf1c9f 100644
--- a/htdocs/product/stock/productlot_document.php
+++ b/htdocs/product/stock/productlot_document.php
@@ -26,7 +26,7 @@
 /**
  *       \file       htdocs/product/stock/productlot_document.php
  *       \ingroup    product
- *       \brief      Page des documents joints sur les lots produits
+ *       \brief      Page of attached documents for porudct lots
  */
 
 require '../../main.inc.php';
@@ -79,7 +79,7 @@ if ($id || $ref)
 	$object->fetch($id, $productid, $batch);
 	$object->ref = $object->batch; // For document management ( it use $object->ref)
 
-	if (!empty($conf->productbatch->enabled)) $upload_dir = $conf->productbatch->multidir_output[$object->entity].'/'.get_exdir(0, 0, 0, 0, $object, $modulepart).dol_sanitizeFileName($object->ref);
+	if (!empty($conf->productbatch->enabled)) $upload_dir = $conf->productbatch->multidir_output[$object->entity].'/'.get_exdir(0, 0, 0, 1, $object, $modulepart);
 }