diff --git a/htdocs/compta/facture/list.php b/htdocs/compta/facture/list.php
index 8563572da7ce3ee0c7813dfc40fb48fab62d3237..4b734a5e7d97d8d93563efe4395c14f3dcb328eb 100644
--- a/htdocs/compta/facture/list.php
+++ b/htdocs/compta/facture/list.php
@@ -552,14 +552,14 @@ if ($resql)
     if ($search_societe)     $param.='&search_societe=' .urlencode($search_societe);
     if ($search_sale > 0)    $param.='&search_sale=' .urlencode($search_sale);
     if ($search_user > 0)    $param.='&search_user=' .urlencode($search_user);
-    if ($search_product_category > 0)   $param.='$search_product_category=' .urlencode($search_product_category);
+    if ($search_product_category > 0)   $param.='&search_product_category=' .urlencode($search_product_category);
     if ($search_montant_ht != '')  $param.='&search_montant_ht='.urlencode($search_montant_ht);
     if ($search_montant_vat != '')  $param.='&search_montant_vat='.urlencode($search_montant_vat);
     if ($search_montant_localtax1 != '')  $param.='&search_montant_localtax1='.urlencode($search_montant_localtax1);
     if ($search_montant_localtax2 != '')  $param.='&search_montant_localtax2='.urlencode($search_montant_localtax2);
     if ($search_montant_ttc != '') $param.='&search_montant_ttc='.urlencode($search_montant_ttc);
 	if ($search_status != '') $param.='&search_status='.urlencode($search_status);
-	if ($search_paymentmode > 0) $param.='search_paymentmode='.urlencode($search_paymentmode);
+	if ($search_paymentmode > 0) $param.='&search_paymentmode='.urlencode($search_paymentmode);
     if ($show_files)         $param.='&show_files=' .$show_files;
 	if ($option)             $param.="&option=".$option;
 	if ($optioncss != '')    $param.='&optioncss='.$optioncss;