diff --git a/bin/cfg b/bin/cfg
index d266cfa..a7f7b9d 100755
--- a/bin/cfg
+++ b/bin/cfg
@@ -153,8 +153,10 @@ try {
 } catch (\Exception $ex) {
 	echo $usage;
 
-	if ($argv[1] == '-h' || $argv[1] == '--help' || $argv[1] == 'help') {
-		exit(0);
+	if (isset($argv[1])) {
+		if ($argv[1] == '-h' || $argv[1] == '--help' || $argv[1] == 'help') {
+			exit(0);
+		}
 	}
 	echo $ex->getMessage().PHP_EOL;
 	exit(1);