diff --git a/schema.js b/schema.js
index 6c9de60c..df544677 100644
--- a/schema.js
+++ b/schema.js
@@ -35,7 +35,9 @@ module.exports = Joi.object().keys({
         retries: Joi.number().integer().optional().default(3).min(0),
       }).unknown(false).requiredKeys('url'),
       placeholder: Joi.object().keys({
-        url: Joi.string().uri({ scheme: /https?/ })
+        url: Joi.string().uri({ scheme: /https?/ }),
+        timeout: Joi.number().integer().optional().default(250).min(0),
+        retries: Joi.number().integer().optional().default(3).min(0),
       }).unknown(false).requiredKeys('url')
     }).unknown(false).default({}) // default api.services to an empty object