diff --git a/package.json b/package.json
index 838d752..58dd3f1 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,10 @@
   "bin": {
     "rune": "./src/cli.ts"
   },
+  "files": [
+    "src",
+    "README.md"
+  ],
   "type": "module",
   "module": "src/cli.ts",
   "scripts": {