diff --git a/server.js b/server.js
index d4ae3eb..9dc3329 100644
--- a/server.js
+++ b/server.js
@@ -41,7 +41,7 @@ let options = {
     ],
   },
   extractCSS: true,
-  cssOutputPath: 'css/styles.css',
+  cssOutputPath: (config.basePath || '') + '/css/styles.css',
   publicPath: 'public' + (config.basePath || ''),
   compilerConfig: {
       // custom webpack config