diff --git a/htdocs/paiement.class.php b/htdocs/paiement.class.php
index e0cded8daf1..5098e3dbea2 100644
--- a/htdocs/paiement.class.php
+++ b/htdocs/paiement.class.php
@@ -65,7 +65,7 @@ class Paiement
       }
     else
       {
-	print "$sql";
+		print $this->db->error() ."<br>".$sql;
       }  
   }
   /*