diff --git a/.travis.yml b/.travis.yml
index 0be402b..33c817e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,4 @@
 language: node_js
 node_js:
 - 'node'
+- '4.2'
diff --git a/lib/local-web-server.js b/lib/local-web-server.js
index 236b303..0621a4e 100644
--- a/lib/local-web-server.js
+++ b/lib/local-web-server.js
@@ -61,6 +61,7 @@ function localWebServer (options) {
 
   options.rewrite = arrayify(options.rewrite)
   options.forbid = arrayify(options.forbid)
+  options.mocks = arrayify(options.mocks)
 
   const debug = require('debug')('local-web-server')
   const Koa = require('koa')