diff --git a/setup.php-presetup b/setup.php-presetup
index cc0c523..630d63d 100644
--- a/setup.php-presetup
+++ b/setup.php-presetup
@@ -674,7 +674,7 @@ EOS;
 	} else {
 		echo "openvpn is required to generate a takey.pem<br>";
 		echo "You can create one later like this:<br>";
-		echo "openvpn --genkey --secret". $config[private_dir] . "/takey.pem<br>";
+		echo "openvpn --genkey --secret". $config['private_dir'] . "/takey.pem<br>";
 	}