diff --git a/package.json b/package.json
index e920703..781d2a9 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,8 @@
   "type": "module",
   "main": "./lib/index.js",
   "files": [
-    "lib"
+    "lib",
+    "src"
   ],
   "scripts": {
     "build": "tsc",