diff --git a/packages/vite/src/node/server/index.ts b/packages/vite/src/node/server/index.ts
index 13e870df0a84f2..0831cd01fe3743 100644
--- a/packages/vite/src/node/server/index.ts
+++ b/packages/vite/src/node/server/index.ts
@@ -675,6 +675,8 @@ export async function _createServer(
     const listen = httpServer.listen.bind(httpServer)
     httpServer.listen = (async (port: number, ...args: any[]) => {
       try {
+        // ensure ws server started
+        ws.listen()
         await initServer()
       } catch (e) {
         httpServer.emit('error', e)