diff --git a/htdocs/install/mysql/tables/llx_facturedet.sql b/htdocs/install/mysql/tables/llx_facturedet.sql
index 540964edebb..551cf6b98cd 100644
--- a/htdocs/install/mysql/tables/llx_facturedet.sql
+++ b/htdocs/install/mysql/tables/llx_facturedet.sql
@@ -63,8 +63,10 @@ create table llx_facturedet
   situation_percent real,   -- % progression of lines invoicing
   fk_prev_id        integer, -- id of the line in the previous situation,
   fk_unit           integer DEFAULT NULL, -- id of the unit code¡
-  fk_user           integer DEFAULT NULL, -- id of the user associated to line
-  fk_multicurrency		integer,
+  fk_user_author		integer,                -- user making creation
+  fk_user_modif     integer,                -- user making last change
+  fk_user_associate integer DEFAULT NULL,   -- user associated to line
+  fk_multicurrency	integer,
   multicurrency_code			varchar(255),
   multicurrency_subprice		double(24,8) DEFAULT 0,
   multicurrency_total_ht		double(24,8) DEFAULT 0,