diff --git a/package.json b/package.json
index b676907..1b53859 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,8 @@
     "prepublishOnly": "npm run format && npm run test && npm run build"
   },
   "files": [
-    "dist/"
+    "dist/",
+    "src/"
   ],
   "jest": {
     "verbose": true,