diff --git a/htdocs/commande/class/commande.class.php b/htdocs/commande/class/commande.class.php
index 291ead61cd3..d2ee2bb3079 100644
--- a/htdocs/commande/class/commande.class.php
+++ b/htdocs/commande/class/commande.class.php
@@ -1634,8 +1634,8 @@ class Commande extends CommonOrder
 			$price = $pu;
 			$remise = 0;
 			if ($remise_percent > 0) {
-				$remise = round(($pu * $remise_percent / 100), 2);
-				$price = $pu - $remise;
+				$remise = round(((float) $pu * $remise_percent / 100), 2);
+				$price = (float) $pu - $remise;
 			}
 
 			// Insert line
@@ -3187,8 +3187,8 @@ class Commande extends CommonOrder
 			}
 			$remise = 0;
 			if ($remise_percent > 0) {
-				$remise = round(($pu * $remise_percent / 100), 2);
-				$price = ($pu - $remise);
+				$remise = round(((float) $pu * $remise_percent / 100), 2);
+				$price = ((float) $pu - $remise);
 			}
 
 			//Fetch current line from the database and then clone the object and set it in $oldline property