diff --git a/htdocs/fourn/facture/card.php b/htdocs/fourn/facture/card.php
index f637caec3cb..bd7d1317957 100644
--- a/htdocs/fourn/facture/card.php
+++ b/htdocs/fourn/facture/card.php
@@ -980,10 +980,8 @@ if (empty($reshook))
 		        setEventMessages($langs->trans("ErrorQtyTooLowForThisSupplier"), null, 'errors');
 	        }
 	    }
-	    else if (GETPOST('price_ht')!=='' || GETPOST('price_ttc')!=='')
+		else if ($price_ht !== '' || GETPOST('price_ttc') !== '') // $price_ht is already set
 		{
-			$pu_ht = price2num($price_ht, 'MU');
-			$pu_ttc = price2num(GETPOST('price_ttc'), 'MU');
 			$tva_npr = (preg_match('/\*/', $tva_tx) ? 1 : 0);
 			$tva_tx = str_replace('*', '', $tva_tx);
 			$label = (GETPOST('product_label') ? GETPOST('product_label') : '');
@@ -998,19 +996,18 @@ if (empty($reshook))
 	    	$localtax1_tx= get_localtax($tva_tx, 1,$mysoc,$object->thirdparty);
 	    	$localtax2_tx= get_localtax($tva_tx, 2,$mysoc,$object->thirdparty);
 
-	    	if (!empty($_POST['price_ht']))
-	    	{
-	    		$ht = price2num($_POST['price_ht']);
-	            $price_base_type = 'HT';
-	        }
-	        else
+			if ($price_ht !== '')
 			{
-	    		$ttc = price2num($_POST['price_ttc']);
-	            $ht = $ttc / (1 + ($tva_tx / 100));
-	            $price_base_type = 'HT';
-	        }
-
-			$result=$object->addline($product_desc, $ht, $tva_tx, $localtax1_tx, $localtax2_tx, $qty, 0, $remise_percent, $date_start, $date_end, 0, $tva_npr, $price_base_type, $type, -1, 0, $array_options, $fk_unit);
+				$pu_ht = price2num($price_ht, 'MU'); // $pu_ht must be rounded according to settings
+			}
+			else
+			{
+				$pu_ttc = price2num(GETPOST('price_ttc'), 'MU');
+				$pu_ht = price2num($pu_ttc / (1 + ($tva_tx / 100)), 'MU'); // $pu_ht must be rounded according to settings
+			}
+			$price_base_type = 'HT';
+			
+			$result=$object->addline($product_desc, $pu_ht, $tva_tx, $localtax1_tx, $localtax2_tx, $qty, 0, $remise_percent, $date_start, $date_end, 0, $tva_npr, $price_base_type, $type, -1, 0, $array_options, $fk_unit);
 	    }
 
 	    //print "xx".$tva_tx; exit;