diff --git a/htdocs/product/admin/product.php b/htdocs/product/admin/product.php
index c188fb949735ed17e3e02c0fe0f59ee1a80c7163..b8c07df87a55ff9d9bd5ab044d3013f6f34ff4dd 100644
--- a/htdocs/product/admin/product.php
+++ b/htdocs/product/admin/product.php
@@ -56,7 +56,9 @@ if ($conf->global->MAIN_FEATURES_LEVEL >= 2)
 }
 
 // Clean param
-if (! empty($conf->global->PRODUIT_MULTIPRICES) && empty($conf->global->PRODUIT_MULTIPRICES_LIMIT)) $conf->global->PRODUIT_MULTIPRICES_LIMIT = 5;
+if (! empty($conf->global->PRODUIT_MULTIPRICES) && empty($conf->global->PRODUIT_MULTIPRICES_LIMIT)) {
+	dolibarr_set_const($db, 'PRODUIT_MULTIPRICES_LIMIT', 5, 'chaine', 0, '', $conf->entity);
+}