diff --git a/test/playground.test.js b/test/playground.test.js
deleted file mode 100644
index f0e24d5..0000000
--- a/test/playground.test.js
+++ /dev/null
@@ -1,62 +0,0 @@
-import path from "path"
-
-import fs from "fs-extra"
-import webpack from "webpack"
-import pify from "pify"
-import CleanWebpackPlugin from "clean-webpack-plugin"
-import PublishimoWebpackPlugin from "publishimo-webpack-plugin"
-import fsp from "@absolunet/fsp"
-
-const indexModule = (process.env.MAIN ? path.resolve(__dirname, "..", process.env.MAIN) : path.join(__dirname, "..", "src"))
-const {default: JsdocTsdWebpackPlugin} = require(indexModule)
-
-jest.setTimeout(60 * 1000)
-
-const runWebpack = async (name, extraConfig) => {
-  const webpackConfig = {
-    target: "node",
-    mode: "production",
-    devtool: "inline-source-map",
-    context: path.join(__dirname, name),
-    entry: path.join(__dirname, name, "src"),
-    output: {
-      path: path.join(__dirname, name, "dist", "package"),
-    },
-    ...extraConfig,
-  }
-  await fsp.outputJson5(path.join(__dirname, name, "dist", "config.json5"), webpackConfig, {space: 2})
-  const stats = await pify(webpack)(webpackConfig)
-  await fsp.outputJson5(path.join(__dirname, name, "dist", "stats.json5"), stats.toJson(), {space: 2})
-  return stats
-}
-
-it("should run with {babel: true}", async () => {
-  await runWebpack("with-babel", {
-    plugins: [
-      new CleanWebpackPlugin,
-      new JsdocTsdWebpackPlugin({
-        babel: true,
-        jsdocTsdConfig: {
-          pedantic: true,
-        },
-      }),
-      new PublishimoWebpackPlugin,
-    ],
-    module: {
-      rules: [
-        {
-          test: /\.js$/,
-          include: /src\//,
-          use: {
-            loader: "babel-loader",
-            options: {presets: ["jaid"]},
-          },
-        },
-      ],
-    },
-  })
-  const tsdContent = fs.readFileSync(path.join(__dirname, "with-babel", "dist", "package", "main.d.ts"), "utf8")
-  expect(tsdContent).toMatch("declare")
-  const htmlContent = fs.readFileSync(path.join(__dirname, "with-babel", "dist", "homepage", "with-babel", "1.0.0", "index.html"), "utf8")
-  expect(htmlContent).toMatch("hi (with babel)")
-})
\ No newline at end of file
diff --git a/test/test.js b/test/test.js
index 06f3694..763d04d 100644
--- a/test/test.js
+++ b/test/test.js
@@ -61,7 +61,7 @@ it("should run with {babel: true}", async () => {
       rules: [
         {
           test: /\.js$/,
-          include: /src\//,
+          include: /src(\/|\\)/,
           use: {
             loader: "babel-loader",
             options: {presets: ["jaid"]},