preact-cli: Error: Cannot find module 'extract-text-webpack-plugin' with npm@5.2.0

$ preact -v 
1.3.0

$ npm -v 
5.2.0

Error:

Error: Cannot find module 'extract-text-webpack-plugin'
    at Function.Module._resolveFilename (module.js:485:15)
    at Function.Module._load (module.js:437:25)
    at Module.require (module.js:513:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/home/khoa/web/mui/node_modules/preact-cli/lib/lib/webpack/webpack-base-config.js:13:33)
    at Module._compile (module.js:569:30)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:503:32)
    at tryModuleLoad (module.js:466:12)
    at Function.Module._load (module.js:458:3)
    at Module.require (module.js:513:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/home/khoa/web/mui/node_modules/preact-cli/lib/lib/webpack/webpack-client-config.js:39:26)
    at Module._compile (module.js:569:30)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:503:32)
    at tryModuleLoad (module.js:466:12)
    at Function.Module._load (module.js:458:3)
    at Module.require (module.js:513:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/home/khoa/web/mui/node_modules/preact-cli/lib/lib/webpack/run-webpack.js:27:28)
    at Module._compile (module.js:569:30)

Reproduce:

• Init new project preact create test && cd $_
• npm start

P/s:

This only happens with npm@5.2.0. For some reason, node can’t resolve it

❯ npm ls extract-text-webpack-plugin
mui@1.0.0 /home/khoa/web/mui
└─┬ preact-cli@1.3.0
  └─┬ @webpack-blocks/extract-text2@0.4.0
    └── extract-text-webpack-plugin@2.1.2 

My rule of thumb is if you use it, you must install it first. Thoughts @developit @lukeed ?