diff --git a/htdocs/variants/combinations.php b/htdocs/variants/combinations.php
index 0d9de5d857f..c29fc519258 100644
--- a/htdocs/variants/combinations.php
+++ b/htdocs/variants/combinations.php
@@ -30,10 +30,13 @@ $langs->loadLangs(array("products", "other"));
 $id = GETPOST('id', 'int');
 $valueid = GETPOST('valueid', 'int');
 $ref = GETPOST('ref', 'alpha');
-$weight_impact = GETPOST('weight_impact', 'alpha');
-$price_impact = GETPOST('price_impact', 'alpha');
+$weight_impact = price2num(GETPOST('weight_impact', 'alpha'), 2);
 $price_impact_percent = (bool) GETPOST('price_impact_percent');
-
+if ($price_impact_percent) {
+	$price_impact = price2num(GETPOST('price_impact', 'alpha'), 2);
+} else {
+	$price_impact = price2num(GETPOST('price_impact', 'alpha'), 'MU');
+}
 $level_price_impact = GETPOST('level_price_impact', 'array');
 $level_price_impact_percent = GETPOST('level_price_impact_percent', 'array');
 
diff --git a/htdocs/variants/list.php b/htdocs/variants/list.php
index dcf4fdcdb43..ecb42ba25e2 100644
--- a/htdocs/variants/list.php
+++ b/htdocs/variants/list.php
@@ -16,8 +16,8 @@
  */
 
 require '../main.inc.php';
-require DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
-require DOL_DOCUMENT_ROOT.'/variants/class/ProductAttribute.class.php';
+require_once DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
+require_once DOL_DOCUMENT_ROOT.'/variants/class/ProductAttribute.class.php';
 
 $action = GETPOST('action', 'aZ09');
 $object = new ProductAttribute($db);