diff --git a/mysql/migration/2.0.0-2.1.0.sql b/mysql/migration/2.0.0-2.1.0.sql
index 0aa7f3bea02..0cce85d8ea0 100644
--- a/mysql/migration/2.0.0-2.1.0.sql
+++ b/mysql/migration/2.0.0-2.1.0.sql
@@ -321,9 +321,13 @@ alter table llx_propaldet add column rang integer DEFAULT 0;
 
 alter table llx_facture drop column model;
 alter table llx_facture add column model_pdf varchar(50) after note_public;
-alter table llx_facture add column fk_facture integer after fk_user_valid;
-ALTER TABLE llx_facture ADD INDEX idx_facture_fk_facture (fk_facture);
-ALTER TABLE llx_facture ADD CONSTRAINT fk_facture_fk_facture        FOREIGN KEY (fk_facture)     REFERENCES llx_facture (rowid);
+
+alter table llx_facture drop foreign key fk_facture_fk_facture;
+alter table llx_facture drop column fk_facture;
+alter table llx_facture add column fk_facture_source integer after fk_user_valid;
+ALTER TABLE llx_facture ADD INDEX idx_facture_fk_facture_source (fk_facture_source);
+ALTER TABLE llx_facture ADD CONSTRAINT fk_facture_source_fk_facture FOREIGN KEY (fk_facture_source)     REFERENCES llx_facture (rowid);
+alter table llx_facture add column type smallint DEFAULT 0 NOT NULL after facnumber;
 
 
 -- drop table llx_societe_remise_except;
diff --git a/mysql/tables/llx_facture.sql b/mysql/tables/llx_facture.sql
index e27ad86b09b..fdc8584d32d 100644
--- a/mysql/tables/llx_facture.sql
+++ b/mysql/tables/llx_facture.sql
@@ -24,6 +24,7 @@ create table llx_facture
 (
   rowid               integer AUTO_INCREMENT PRIMARY KEY,
   facnumber           varchar(30)        NOT NULL,
+  type				  smallint DEFAULT 0 NOT NULL,
   ref_client          varchar(30),
   increment           varchar(10),
   fk_soc              integer            NOT NULL,
@@ -48,7 +49,7 @@ create table llx_facture
   fk_user_author      integer,   -- createur de la facture
   fk_user_valid       integer,   -- valideur de la facture
 
-  fk_facture          integer,   -- facture origine si facture avoir
+  fk_facture_source   integer,   -- facture origine si facture avoir
   fk_projet           integer,   -- projet auquel est associée la facture
 
   fk_cond_reglement   integer  DEFAULT 1 NOT NULL,  -- condition de reglement (30 jours, fin de mois ...)