diff --git a/mysql/migration/2.1.0-2.2.0.sql b/mysql/migration/2.1.0-2.2.0.sql
index fbdde1df751..907e78dacce 100644
--- a/mysql/migration/2.1.0-2.2.0.sql
+++ b/mysql/migration/2.1.0-2.2.0.sql
@@ -823,3 +823,4 @@ alter table llx_boxes modify box_order varchar(3) NOT NULL;
 
 
 alter table llx_bordereau_cheque modify number integer;
+ALTER TABLE llx_facturedet ADD COLUM special_code tinyint unsigned default 0;
\ No newline at end of file
diff --git a/mysql/tables/llx_facturedet.sql b/mysql/tables/llx_facturedet.sql
index 9e25f9b80ba..bb6430353b7 100644
--- a/mysql/tables/llx_facturedet.sql
+++ b/mysql/tables/llx_facturedet.sql
@@ -41,5 +41,6 @@ create table llx_facturedet
   info_bits		  integer DEFAULT 0, 	-- TVA NPR ou non
   fk_code_ventilation integer DEFAULT 0 NOT NULL,
   fk_export_compta    integer DEFAULT 0 NOT NULL,
-  rang                integer DEFAULT 0
+  rang                integer DEFAULT 0,         -- ordre d'affichage
+  special_code    tinyint UNSIGNED DEFAULT 0, -- code pour les lignes speciales (livraison=1, ecotaxe=2)
 )type=innodb;
diff --git a/pgsql/tables/llx_facturedet.sql b/pgsql/tables/llx_facturedet.sql
index badd5d10e22..ea82aebe511 100644
--- a/pgsql/tables/llx_facturedet.sql
+++ b/pgsql/tables/llx_facturedet.sql
@@ -45,5 +45,6 @@ create table llx_facturedet
   "info_bits"		  integer DEFAULT 0, 	-- TVA NPR ou non
   "fk_code_ventilation" integer DEFAULT 0 NOT NULL,
   "fk_export_compta"    integer DEFAULT 0 NOT NULL,
-  "rang"                integer DEFAULT 0
+  "rang"                integer DEFAULT 0,  -- ordre d'affichage
+  "special_code"    smallint unsiDEFAULT 0, -- code pour les lignes speciales (livraison=1, ecotaxe=2)
 );