diff --git a/pandora_console/operation/agentes/interface_traffic_graph_win.php b/pandora_console/operation/agentes/interface_traffic_graph_win.php
index 5dce55b101..8d676b4340 100644
--- a/pandora_console/operation/agentes/interface_traffic_graph_win.php
+++ b/pandora_console/operation/agentes/interface_traffic_graph_win.php
@@ -139,7 +139,10 @@ $interface_traffic_modules = array(
 		}
 		
 		// Get input parameters
-		$period = (int) get_parameter('period', SECONDS_1HOUR);
+		$period = get_parameter ("period");
+		if ($period == "") {
+			$period = get_parameter ("period_select", SECONDS_1DAY);
+		}
 		$width = (int) get_parameter("width", 555);
 		$height = (int) get_parameter("height", 245);
 		$start_date = (string) get_parameter("start_date", date("Y-m-d"));