diff --git a/lib/prod.js b/lib/prod.js
index 03713f8..60452e6 100644
--- a/lib/prod.js
+++ b/lib/prod.js
@@ -19,7 +19,7 @@ export default function compile(root = '', dist = '', conf = {}) {
   const LEGACY_MODE = !!conf.legacy
 
   let timeStart = Date.now()
-  let template = fs.cat(join(process.env.PWD, 'index.html')).toString()
+  let template = fs.cat(join(process.cwd(), 'index.html')).toString()
 
   let list = fs
     .ls(SOURCE_DIR, true)