diff --git a/htdocs/compta/bank/graph.php b/htdocs/compta/bank/graph.php
index 5f00a500c31..9db2bb35233 100644
--- a/htdocs/compta/bank/graph.php
+++ b/htdocs/compta/bank/graph.php
@@ -107,6 +107,8 @@ else
 	{
 		dol_print_error($db);
 	}
+	if (empty($min)) $min = dol_now - 3600 * 24;
+	
 	$log="graph.php: min=".$min." max=".$max;
 	dol_syslog($log);