diff --git a/htdocs/commande/commande.class.php b/htdocs/commande/commande.class.php
index e1a485d1027..00fd71ea9db 100644
--- a/htdocs/commande/commande.class.php
+++ b/htdocs/commande/commande.class.php
@@ -687,7 +687,7 @@ class Commande
 				$this->brouillon = 1;
 			// exp pdf -----------
 			$this->lignes = array();
-			$sql = 'SELECT l.fk_product, l.description, l.price, l.qty, l.rowid, l.tva_tx, l.remise_percent, l.subprice,';
+			$sql = 'SELECT l.fk_product, l.description, l.price, l.qty, l.rowid, l.tva_tx, l.remise_percent, l.subprice, l.coef,';
 			$sql.= ' p.label, p.description as product_desc, p.ref, p.fk_product_type, p.rowid as prodid';
 			$sql.= ' FROM '.MAIN_DB_PREFIX.'commandedet as l';
 			$sql.= ' LEFT JOIN '.MAIN_DB_PREFIX.'product as p ON l.fk_product=p.rowid';
@@ -712,6 +712,7 @@ class Commande
                         $ligne->remise_percent = $objp->remise_percent;
                         $ligne->price          = $objp->price;
                         $ligne->product_id     = $objp->fk_product;
+                        $ligne->coef           = $objp->coef;
 
                         $ligne->libelle        = $objp->label;        // Label produit
                         $ligne->product_desc   = $objp->product_desc; // Description produit
diff --git a/mysql/migration/2.0.0-2.1.0.sql b/mysql/migration/2.0.0-2.1.0.sql
index 3c749268b0e..f607b3f87d8 100644
--- a/mysql/migration/2.0.0-2.1.0.sql
+++ b/mysql/migration/2.0.0-2.1.0.sql
@@ -183,3 +183,5 @@ ALTER TABLE llx_facture_rec ADD CONSTRAINT fk_facture_rec_fk_user_author    FORE
 ALTER TABLE llx_facture_rec ADD CONSTRAINT fk_facture_rec_fk_projet         FOREIGN KEY (fk_projet) REFERENCES llx_projet (rowid);
 
 ALTER TABLE llx_facture_rec ADD UNIQUE INDEX idx_facture_rec_uk_titre (titre);
+
+alter table llx_commandedet add column coef real;
diff --git a/mysql/tables/llx_commandedet.sql b/mysql/tables/llx_commandedet.sql
index 4c313194423..e4c9aa77d2d 100644
--- a/mysql/tables/llx_commandedet.sql
+++ b/mysql/tables/llx_commandedet.sql
@@ -31,5 +31,6 @@ create table llx_commandedet
   remise_percent real DEFAULT 0,    -- pourcentage de remise
   remise         real DEFAULT 0,    -- montant de la remise
   subprice       real,              -- prix avant remise
-  price          real               -- prix final
+  price          real,              -- prix final
+  coef           real               -- coefficient de marge
 )type=innodb;