diff --git a/includes/cli.php b/includes/cli.php
index c6128df..d417e9a 100644
--- a/includes/cli.php
+++ b/includes/cli.php
@@ -45,6 +45,7 @@ function usage($error=false) {
 	printf(_("Usage: %s [-h] [-qd] command\n"), $argv[0]);
 	echo _("  -h        Show this message\n");
 	echo _("  -q / -d   Quiet/Debug mode\n");
+	echo _("  --trace   Trace mode (the most verbose)\n");
 	echo _("  command   Command to run\n");
 	echo "\n";
 	echo _("Available commands:\n");
@@ -98,6 +99,9 @@ function handle_cli_args() {
 				case '--quiet':
 					$log_level = 'WARNING';
 					break;
+				case '--trace':
+					$log_level = 'TRACE';
+					break;
 				default:
 					if ($cli_command)
 						$command_args[] = $argv[$i];