diff --git a/lib/server/generate.js b/lib/server/generate.js
index 6d3e033a59..b804b77262 100644
--- a/lib/server/generate.js
+++ b/lib/server/generate.js
@@ -365,7 +365,7 @@ function execute() {
   });
 
   // copy all static files from user
-  files = glob.sync(join(CWD, 'static', '**'), { dot: true});
+  files = glob.sync(join(CWD, 'static', '**'), {dot: true});
   files.forEach(file => {
     // parse css files to replace colors according to siteConfig
     if (file.match(/\.css$/) && !isSeparateCss(file)) {