diff --git a/backend/package.json b/backend/package.json
index ac94d10f3..7cc0631b2 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -2,7 +2,7 @@
   "name": "gradido-backend",
   "version": "0.0.1",
   "description": "Gradido unified backend providing an API-Service for Gradido Transactions",
-  "main": "index.js",
+  "main": "src/index.ts",
   "repository": "https://github.com/gradido/gradido/backend",
   "author": "Ulf Gebhardt",
   "license": "MIT",