diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index 96bf7eda63bbd..8057ce3041c4e 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -1757,7 +1757,7 @@ public function updateline($rowid, $desc, $pu, $qty, $remise_percent, $date_star
 		}
 
 		// if buy price not defined, define buyprice as configured in margin admin
-		if ($this->pa_ht == 0) {
+		if ($pa_ht == 0) {
 			if (($result = $this->defineBuyPrice($pu, $remise_percent)) < 0) {
 				return $result;
 			} else {
@@ -3303,7 +3303,6 @@ public function fetch($id, $ref = '')
 				$this->statut = $obj->statut;
 				$this->product_ref = $obj->product_ref;
 				$this->product_label = $obj->product_label;
-				$this->product_description = $obj->product_description;
 				$this->product_type = $obj->product_type;
 				$this->label = $obj->label; // deprecated. We do not use this field. Only ref and label of product, and description of contract line
 				$this->description = $obj->description;
@@ -3440,7 +3439,7 @@ public function update($user, $notrigger = 0)
 		// qty, pu, remise_percent et txtva
 		// TRES IMPORTANT: C'est au moment de l'insertion ligne qu'on doit stocker
 		// la part ht, tva et ttc, et ce au niveau de la ligne qui a son propre taux tva.
-		$localtaxes_type = getLocalTaxesFromRate($this->txtva, 0, $this->thirdparty, $mysoc);
+		$localtaxes_type = getLocalTaxesFromRate($this->tva_tx, 0, $this->thirdparty, $mysoc);
 
 		$tabprice = calcul_price_total($this->qty, $this->price_ht, $this->remise_percent, $this->tva_tx, $this->localtax1_tx, $this->localtax2_tx, 0, 'HT', 0, 1, $mysoc, $localtaxes_type);
 		$this->total_ht  = $tabprice[0];