diff --git a/pandora_console/include/functions_alerts.php b/pandora_console/include/functions_alerts.php
index 577dfe82f1..6c1938e4d8 100644
--- a/pandora_console/include/functions_alerts.php
+++ b/pandora_console/include/functions_alerts.php
@@ -1746,11 +1746,22 @@ function get_group_alerts($id_group, $filter = '', $options = false,
 			$filter .= '';
 			break;
 	}
+	
+	//WHEN SELECT ALL TAGS TO FILTER ALERTS
+	
+	$modules_tags = count(db_process_sql('select * from ttag'));
+	
+	$modules_user_tags = count(explode(",", $tag));
+	
+	if($modules_tags != $modules_user_tags){
+		if ($tag) {
+			$filter .= ' AND (id_agent_module IN (SELECT id_agente_modulo FROM ttag_module WHERE id_tag IN ('.$tag.')))';
+		}
 
-	if ($tag) {
-		$filter .= ' AND (id_agent_module IN (SELECT id_agente_modulo FROM ttag_module WHERE id_tag IN ('.$tag.')))';
 	}
-
+	
+	//WHEN SELECT ALL TAGS TO FILTER ALERTS
+	
 	if($action_filter){
 		$filter .= ' AND (talert_template_modules.id IN (SELECT id_alert_template_module FROM talert_template_module_actions where id_alert_action = '.$action_filter.'))';
 	}