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;