diff --git a/lib/runner.js b/lib/runner.js
index d34db61..89970ef 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -20,6 +20,7 @@ exports.run = function (targets, root, sources) {
         exec = require('child_process').exec,
         MOCHA_PHANTOM_BIN = require.resolve('.bin/mocha-phantomjs' + (isWinOS ? '.cmd' : '')),
         MOCHA_PHANTOM_REPORTER = process.env.MOCHA_PHANTOM_REPORTER || 'spec',
+        MOCHA_PHANTOM_ARGS = process.env.MOCHA_PHANTOM_ARGS,
         MOCHA_PHANTOM_MAX_COUNT = parseInt(process.env.MOCHA_PHANTOM_MAX_COUNT, 10) || 10,
         MOCHA_PHANTOM_HOOK = path.resolve(__dirname, './hooks/mocha-phantomjs.js'),
         phantomCount = 0,
@@ -46,7 +47,7 @@ exports.run = function (targets, root, sources) {
             target = nodeName + '.html',
             targetPath = path.join(nodePath, target),
             fullpath = path.join(root, nodePath, target),
-            args = '--reporter ' + MOCHA_PHANTOM_REPORTER,
+            args = MOCHA_PHANTOM_ARGS ? MOCHA_PHANTOM_ARGS : '--reporter ' + MOCHA_PHANTOM_REPORTER,
             fileurl = url.format({
                 protocol: 'file',
                 host: '/',