diff --git a/htdocs/install/mysql/migration/16.0.0-17.0.0.sql b/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
index 451184f4d08..9c32e191198 100644
--- a/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
+++ b/htdocs/install/mysql/migration/16.0.0-17.0.0.sql
@@ -43,6 +43,8 @@ ALTER TABLE llx_c_email_templates ADD COLUMN email_to varchar(255);
 ALTER TABLE llx_c_email_templates ADD COLUMN email_tocc varchar(255);
 ALTER TABLE llx_c_email_templates ADD COLUMN email_tobcc varchar(255);
 
+ALTER TABLE llx_expedition ADD COLUMN billed smallint    DEFAULT 0;
+
 
 -- v17
 
diff --git a/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql b/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql
index 974e10c09ff..058a74eea19 100644
--- a/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql
+++ b/htdocs/install/mysql/tables/llx_commande_fournisseur_dispatch.sql
@@ -17,6 +17,10 @@
 -- This table is just an history table to track all receiving done for a 
 -- 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.
 -- ===================================================================
 
 create table llx_commande_fournisseur_dispatch