diff --git a/scripts/fix-package-json.js b/scripts/fix-package-json.js
new file mode 100644
index 00000000..d10147c6
--- /dev/null
+++ b/scripts/fix-package-json.js
@@ -0,0 +1,15 @@
+const fs = require("fs");
+const path = require("path");
+const {EOL} = require("os");
+
+const pkgPath = path.join(__dirname, "../pkg/package.json");
+const pkg = JSON.parse(fs.readFileSync(pkgPath, "utf8"));
+
+pkg.files = pkg.files.map((file) => {
+  if (file.endsWith("/")) {
+    return file + "**";
+  }
+  return file;
+});
+
+fs.writeFileSync(pkgPath, JSON.stringify(pkg, null, 2) + EOL, "utf8");