diff --git a/htdocs/supplier_proposal/card.php b/htdocs/supplier_proposal/card.php
index 9439db0e881..8c5db581534 100644
--- a/htdocs/supplier_proposal/card.php
+++ b/htdocs/supplier_proposal/card.php
@@ -869,7 +869,7 @@ if (empty($reshook))
 		}
 
 		$price_base_type = 'HT';
-		$pu_ht_devise = GETPOST('multicurrency_subprice');
+		$pu_ht_devise = GETPOST('multicurrency_subprice', 'CU');
 
 		// Add buying price
 		$fournprice = (GETPOST('fournprice') ? GETPOST('fournprice') : '');