diff --git a/control/config.js b/control/config.js
index fef7398..b1c23df 100644
--- a/control/config.js
+++ b/control/config.js
@@ -53,7 +53,7 @@ function getKeys (obj, vals) {
       keys['rtmp.url'] = 'rtmp://' + vals.rtmp.host + vals.rtmp.mount
       keys['rtmp.key'] = vals.rtmp.key
     } else if (typeof vals[key] === 'object') {
-      let ks = getKeys(defvals[key], vals[key])
+      let ks = getKeys(obj[key], vals[key])
       for (let i in ks) {
         keys[key + '.' + i] = ks[i]
       }