diff --git a/package.json b/package.json
index 95e7dc5..cc4ea74 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "lint:fix": "concurrently \"pnpm:lint:*:fix\" --names \"fix:\" --prefixColors auto && pnpm format",
     "lint:format": "prettier . --cache --check"
   },
+  "files": ["dist", "index.js", "assert.js"],
   "exports": {
     ".": {
       "import": "./index.js",