diff --git a/pandora_console/operation/agentes/stat_win.php b/pandora_console/operation/agentes/stat_win.php
index 63cb403e04..5199f58506 100644
--- a/pandora_console/operation/agentes/stat_win.php
+++ b/pandora_console/operation/agentes/stat_win.php
@@ -150,7 +150,10 @@ $alias = db_get_value ("alias","tagente","id_agente",$id_agent);
 			$avg_only = $show_other;
 		}
 
-		$period = get_parameter ("period", SECONDS_1DAY);
+		$period = get_parameter ("period");
+		if ($period == "") {
+			$period = get_parameter ("period_select", SECONDS_1DAY);
+		}
 		$id = get_parameter ("id", 0);
 		$width = get_parameter ("width", STATWIN_DEFAULT_CHART_WIDTH);
 		$height = get_parameter ("height", STATWIN_DEFAULT_CHART_HEIGHT);