diff --git a/src/api/id.js b/src/api/id.js
index 729dbd4fe..b9df9f0fc 100644
--- a/src/api/id.js
+++ b/src/api/id.js
@@ -1,11 +1,11 @@
 'use strict'
 
 module.exports = send => {
-  return function id (id, cb) {
-    if (typeof id === 'function') {
-      cb = id
-      id = null
+  return function id (idParam, cb) {
+    if (typeof idParam === 'function') {
+      cb = idParam
+      idParam = null
     }
-    return send('id', id, null, null, cb)
+    return send('id', idParam, null, null, cb)
   }
 }