diff --git a/htdocs/product/price.php b/htdocs/product/price.php
index 6b36e950f78..0c054eb012f 100644
--- a/htdocs/product/price.php
+++ b/htdocs/product/price.php
@@ -357,7 +357,7 @@ if (empty($reshook))
 					break;
 				}
 
-				if ($object->multiprices[$key] != $newprice || $object->multiprices_min[$key] != $newprice_min || $object->multiprices_base_type[$key] != $val['price_base_type']) {
+				if ($object->multiprices[$key] != $newprice || $object->multiprices_min[$key] != $newprice_min || $object->multiprices_base_type[$key] != $val['price_base_type'] || $object->multiprices_tva_tx[$key] != $newvattx) {
 	   				$res = $object->updatePrice($newprice, $val['price_base_type'], $user, $val['vat_tx'], $newprice_min, $key, $val['npr'], $psq, 0, $val['localtaxes_array'], $val['default_vat_code']);
 				} else {
 					$res = 0;