Previous process not being killed

[Guilherhast]

When I try to run a node code the sub process is not being killed.

This is my npm script:

"scripts": {
    "watch": "npx watch --interval=1 'node src/index.js' src"
},

This is a minimal version of the app:

const express = require('express');

const PORT = 3000;
const HOST = 'localhost';

const app = express();

// Run
app.listen(PORT, HOST, ()=>{
	console.log(`Listening: ${HOST}:${PORT}`);
});

This is the error I get:

$ npm run watch

> iplogger@1.0.0 watch
> npx watch --interval=1 'node src/index.js' src

> Watching src
Listening: localhost:3000
# Affter save the file
node:events:492
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use 127.0.0.1:3000
    at Server.setupListenHandle [as _listen2] (node:net:1872:16)
    at listenInCluster (node:net:1920:12)
    at GetAddrInfoReqWrap.doListen [as callback] (node:net:2069:7)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:109:8)
Emitted 'error' event on Server instance at:
    at emitErrorNT (node:net:1899:8)
    at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
  code: 'EADDRINUSE',
  errno: -98,
  syscall: 'listen',
  address: '127.0.0.1',
  port: 3000
}

Node.js v20.9.0

How can I tell the watch command to kill the previous process before starting a new?