diff --git a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
index 34e8859596a..46f0963c371 100644
--- a/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
+++ b/htdocs/install/mysql/migration/14.0.0-15.0.0.sql
@@ -59,7 +59,7 @@ ALTER TABLE llx_eventorganization_conferenceorboothattendee ADD UNIQUE INDEX uk_
 -- VMYSQL4.3 ALTER TABLE llx_eventorganization_conferenceorboothattendee MODIFY COLUMN fk_actioncomm integer NULL;
 -- VPGSQL8.2 ALTER TABLE llx_eventorganization_conferenceorboothattendee ALTER COLUMN fk_actioncomm DROP NOT NULL;
 
-
+ALTER TABLE llx_mrp_mo ADD COLUMN last_main_doc varchar(255);
 
 UPDATE llx_extrafields SET elementtype = 'salary' WHERE elementtype = 'payment_salary';
 ALTER TABLE llx_payment_salary_extrafields RENAME TO llx_salary_extrafields;
diff --git a/htdocs/install/mysql/tables/llx_mrp_mo.sql b/htdocs/install/mysql/tables/llx_mrp_mo.sql
index 185ea1583c9..88dc5d42789 100644
--- a/htdocs/install/mysql/tables/llx_mrp_mo.sql
+++ b/htdocs/install/mysql/tables/llx_mrp_mo.sql
@@ -39,6 +39,7 @@ CREATE TABLE llx_mrp_mo(
 	date_start_planned datetime, 
 	date_end_planned datetime, 
 	fk_bom integer, 
-	fk_project integer
+	fk_project integer,
+	last_main_doc varchar(255)
 	-- END MODULEBUILDER FIELDS
-) ENGINE=innodb;
\ No newline at end of file
+) ENGINE=innodb;