diff --git a/htdocs/product/price.php b/htdocs/product/price.php
index dd56aa42318..61b2be4f837 100644
--- a/htdocs/product/price.php
+++ b/htdocs/product/price.php
@@ -349,6 +349,7 @@ if (empty($reshook))
 
 				$newprice = price2num($newprice, 'MU');
 				$newprice_min = price2num($val['price_min'], 'MU');
+				$newvattx = price2num($val['vat_tx']);
 
 				if (!empty($conf->global->PRODUCT_MINIMUM_RECOMMENDED_PRICE) && $newprice_min < $maxpricesupplier) {
 					setEventMessages($langs->trans("MinimumPriceLimit", price($maxpricesupplier, 0, '', 1, - 1, - 1, 'auto')), null, 'errors');
@@ -356,11 +357,10 @@ if (empty($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;
 
-
 				if ($res < 0) {
 					$error++;
 					setEventMessages($object->error, $object->errors, 'errors');
diff --git a/htdocs/projet/activity/permonth.php b/htdocs/projet/activity/permonth.php
index ae4eed48515..854c9194315 100644
--- a/htdocs/projet/activity/permonth.php
+++ b/htdocs/projet/activity/permonth.php
@@ -170,7 +170,7 @@ if ($action == 'addtime' && $user->rights->projet->lire && GETPOST('assigntask')
 		{
 			// Test if we are already contact of the project (should be rare but sometimes we can add as task contact without being contact of project, like when admin user has been removed from contact of project)
 			$sql = 'SELECT ec.rowid FROM '.MAIN_DB_PREFIX.'element_contact as ec, '.MAIN_DB_PREFIX.'c_type_contact as tc WHERE tc.rowid = ec.fk_c_type_contact';
-			$sql .= ' AND ec.fk_socpeople = '.$idfortaskuser." AND ec.element_id = '.$object->fk_project.' AND tc.element = 'project' AND source = 'internal'";
+			$sql .= ' AND ec.fk_socpeople = '.((int) $idfortaskuser)." AND ec.element_id = ".((int) $object->fk_project)." AND tc.element = 'project' AND source = 'internal'";
 			$resql = $db->query($sql);
 			if ($resql)
 			{