diff --git a/packages/@vuepress/core/lib/dev.js b/packages/@vuepress/core/lib/dev.js
index c8051d3978..c0b728c0e9 100644
--- a/packages/@vuepress/core/lib/dev.js
+++ b/packages/@vuepress/core/lib/dev.js
@@ -137,6 +137,7 @@ async function prepareServer (sourceDir, cliOptions = {}, context) {
     headers: {
       'access-control-allow-origin': '*'
     },
+    open: cliOptions.open,
     publicPath: ctx.base,
     watchOptions: {
       ignored: [