diff --git a/htdocs/product/stock/replenish.php b/htdocs/product/stock/replenish.php
index a3f4cb8ecaf..695cea9a9af 100644
--- a/htdocs/product/stock/replenish.php
+++ b/htdocs/product/stock/replenish.php
@@ -357,17 +357,17 @@ if ($usevirtualstock)
 
 	if ($salert == 'on')	// Option to see when stock is lower than alert
 	{
-		$sql.= ' AND ('.$sqlalertstock.' > 0 AND ('.$sqlalertstock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").')';
+		$sql.= ' AND ('.$sqlalertstock.' >= 0 AND ('.$sqlalertstock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").')';
 		$sql.= ' - ('.$sqlCommandesCli.' - '.$sqlExpeditionsCli.') + ('.$sqlCommandesFourn.' - '.$sqlReceptionFourn.')))';
 		$alertchecked = 'checked';
 	}
 } else {
-	$sql.= ' HAVING (('.$sqldesiredtock.' > 0 AND ('.$sqldesiredtock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").')))';
-	$sql.= ' OR ('.$sqlalertstock.' > 0 AND ('.$sqlalertstock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").'))))';
+	$sql.= ' HAVING (('.$sqldesiredtock.' >= 0 AND ('.$sqldesiredtock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").')))';
+	$sql.= ' OR ('.$sqlalertstock.' >= 0 AND ('.$sqlalertstock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").'))))';
 
 	if ($salert == 'on')	// Option to see when stock is lower than alert
 	{
-		$sql.= ' AND ('.$sqlalertstock.' > 0 AND ('.$sqlalertstock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").')))';
+		$sql.= ' AND ('.$sqlalertstock.' >= 0 AND ('.$sqlalertstock.' > SUM('.$db->ifsql("s.reel IS NULL", "0", "s.reel").')))';
 		$alertchecked = 'checked';
 	}
 }