diff --git a/lib/config.js b/lib/config.js
index 6d18b6865..5fdcb22cf 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -212,7 +212,7 @@ var Config = function() {
   this.protocol = constant.DEFAULT_PROTOCOL;
   this.port = constant.DEFAULT_PORT;
   this.hostname = constant.DEFAULT_HOSTNAME;
-  this.cert = {type: 'one-time', key: '', cert: ''};
+  this.cert = {};
   this.basePath = '';
   this.files = [];
   this.exclude = [];