diff --git a/lib/config/default.js b/lib/config/default.js
index c3ada98..15f11aa 100644
--- a/lib/config/default.js
+++ b/lib/config/default.js
@@ -1,5 +1,7 @@
 'use strict'
 
+const os = require('os')
+
 module.exports = {
   domain: '',
   urlPath: '',
@@ -39,7 +41,7 @@ module.exports = {
   dhParamPath: '',
   // other path
   viewPath: './public/views',
-  tmpPath: './tmp',
+  tmpPath: os.tmpdir(),
   defaultNotePath: './public/default.md',
   docsPath: './public/docs',
   uploadsPath: './public/uploads',
diff --git a/tmp/.keep b/tmp/.keep
deleted file mode 100644
index e69de29..0000000