diff --git a/mysql/migration/2.5.0-2.6.0.sql b/mysql/migration/2.5.0-2.6.0.sql
index d9f56813c3b..6ddef63ca8a 100644
--- a/mysql/migration/2.5.0-2.6.0.sql
+++ b/mysql/migration/2.5.0-2.6.0.sql
@@ -83,6 +83,10 @@ delete from llx_document_model where nom = 'huitre' and type = 'invoice';
 
 drop table llx_don_projet;
 
+alter table llx_facture_fourn_det add column date_start        datetime   DEFAULT NULL;
+alter table llx_facture_fourn_det add column date_end          datetime   DEFAULT NULL;
+
+
 -- V4.1 delete from llx_projet_task where fk_projet not in (select rowid from llx_projet);
 -- V4.1 ALTER TABLE llx_projet_task ADD CONSTRAINT fk_projet_task_fk_projet FOREIGN KEY (fk_projet)    REFERENCES llx_projet (rowid);
 
diff --git a/mysql/tables/llx_facture_fourn_det.sql b/mysql/tables/llx_facture_fourn_det.sql
index bc6d89987d3..b68ea821f85 100644
--- a/mysql/tables/llx_facture_fourn_det.sql
+++ b/mysql/tables/llx_facture_fourn_det.sql
@@ -32,5 +32,7 @@ create table llx_facture_fourn_det
   tva               double(24,8) DEFAULT 0,
   total_ttc         double(24,8) DEFAULT 0,
   product_type	    integer      DEFAULT 0,
+  date_start        datetime   DEFAULT NULL,       -- date debut si service
+  date_end          datetime   DEFAULT NULL,       -- date fin si service
   import_key        varchar(14)
 )type=innodb;