diff --git a/htdocs/societe/class/societe.class.php b/htdocs/societe/class/societe.class.php
index 4b1f9053353..fcdf4e9741a 100644
--- a/htdocs/societe/class/societe.class.php
+++ b/htdocs/societe/class/societe.class.php
@@ -1353,7 +1353,7 @@ class Societe extends CommonObject
 		}
 
 		// Use first price level if level not defined for third party
-		if (! empty($conf->global->PRODUIT_MULTIPRICES) && empty($this->price_level)) $this->price_level=1;
+		if ((! empty($conf->global->PRODUIT_MULTIPRICES) || ! empty($conf->global->PRODUIT_CUSTOMER_PRICES_BY_QTY_MULTIPRICES)) && empty($this->price_level)) $this->price_level=1;
 
 		return $result;
 	}