diff --git a/lib/start-server.js b/lib/start-server.js
index 2eb6160547..7e91eac241 100755
--- a/lib/start-server.js
+++ b/lib/start-server.js
@@ -72,7 +72,8 @@ function checkPort() {
         // start local server on specified port
         const server = require('./server/server.js');
         server(port, program.opts());
-        const host = `http://localhost:${port}`;
+        const {baseUrl} = require(CWD + '/siteConfig.js');
+        const host = `http://localhost:${port}${baseUrl}`;
         console.log('Docusaurus server started on port %d', port);
         openBrowser(host);
       }