diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index 4e2d5e37242..03e816a63f9 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -1667,7 +1667,7 @@ function pdf_getlinedesc($object, $i, $outputlangs, $hideref = 0, $hidedesc = 0,
 	// Show information for lot
 	if (!empty($dbatch)) {
 		// $object is a shipment.
-		//var_dump($object->lines[$i]->details_entrepot);		// array from llx_expeditiondet (we can have seral lines for one fk_origin_line)
+		//var_dump($object->lines[$i]->details_entrepot);		// array from llx_expeditiondet (we can have several lines for one fk_origin_line)
 		//var_dump($object->lines[$i]->detail_batch);			// array from llx_expeditiondet_batch (each line with a lot is linked to llx_expeditiondet)
 
 		include_once DOL_DOCUMENT_ROOT.'/product/stock/class/entrepot.class.php';
diff --git a/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql b/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql
index 058a74eea19..869225a534c 100644
--- a/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql
+++ b/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql
@@ -18,9 +18,9 @@
 -- particular supplier order. A movement with same information is also done
 -- into stock_movement so this table may be useless.
 -- 
--- Detail of each lines of a reception (qty, batch and into wich warehouse is
--- received a purchase order line).
--- This table should be also name llx_receptiondet.
+-- Detail of each lines of a reception (qty, batch and into which warehouse must be
+-- received or has been receveived a purchase order line).
+-- This table should have been named llx_receptiondet_batch
 -- ===================================================================
 
 create table llx_commande_fournisseur_dispatch
diff --git a/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch_extrafields.sql b/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch_extrafields.sql
index 2c85521ea84..d8720358cec 100644
--- a/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch_extrafields.sql
+++ b/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch_extrafields.sql
@@ -14,6 +14,7 @@
 -- You should have received a copy of the GNU General Public License
 -- along with this program. If not, see <https://www.gnu.org/licenses/>.
 --
+-- This table should have been named llx_receptiondet_batch_extrafields
 -- ===================================================================
 
 create table llx_commande_fournisseur_dispatch_extrafields
diff --git a/htdocs/install/mysql/tables/llx_expeditiondet.sql b/htdocs/install/mysql/tables/llx_expeditiondet.sql
index 4a8a5423ce3..cccee9e5747 100644
--- a/htdocs/install/mysql/tables/llx_expeditiondet.sql
+++ b/htdocs/install/mysql/tables/llx_expeditiondet.sql
@@ -16,6 +16,7 @@
 -- You should have received a copy of the GNU General Public License
 -- along with this program. If not, see <https://www.gnu.org/licenses/>.
 --
+-- doe not contains the batch
 -- ===================================================================
 
 create table llx_expeditiondet
diff --git a/htdocs/install/mysql/tables/llx_expeditiondet_batch.sql b/htdocs/install/mysql/tables/llx_expeditiondet_batch.sql
index 43b64451364..a4bd120503d 100644
--- a/htdocs/install/mysql/tables/llx_expeditiondet_batch.sql
+++ b/htdocs/install/mysql/tables/llx_expeditiondet_batch.sql
@@ -14,7 +14,9 @@
 -- You should have received a copy of the GNU General Public License
 -- along with this program. If not, see <https://www.gnu.org/licenses/>.
 --
+-- Similar for supplier to llx_commande_fournisseur_dispatch=llx_receptiondet_batch
 -- ============================================================================
+
 CREATE TABLE llx_expeditiondet_batch (
   rowid integer AUTO_INCREMENT PRIMARY KEY,
   fk_expeditiondet int NOT NULL,
@@ -22,6 +24,6 @@ CREATE TABLE llx_expeditiondet_batch (
   sellby date DEFAULT NULL,
   batch varchar(128) DEFAULT NULL,
   qty double NOT NULL DEFAULT '0',
-  fk_origin_stock integer NOT NULL
+  fk_origin_stock integer NOT NULL			-- id into table llx_product_batch (may be renamed into llx_product_stock_batch in another version). TODO We should add and use instead a fk_warehouse field
 ) ENGINE=innodb;