diff --git a/index.mjs b/index.mts
similarity index 96%
rename from index.mjs
rename to index.mts
index d902baa75..eb6f50d87 100644
--- a/index.mjs
+++ b/index.mts
@@ -12,7 +12,7 @@ const ecosystem = await import('./ecosystem.config.js');
 if (process.env.ROLE) {
   // if role variable is set just run that script
   const app = ecosystem.apps.find((app) => app.name === process.env.ROLE);
-  import('./' + app.script);
+  import('./' + app?.script);
 } else if (process.env.GROUP) {
   // or run the group with pm2
   cp.execSync('pm2 start ecosystem.config.js');
diff --git a/package.json b/package.json
index 373244e57..f3b648571 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "version": "22.0.0",
   "license": "MIT",
   "scripts": {
-    "start": "node index.mjs",
+    "start": "tsx index.mts",
     "test": "NODE_ENV=test mocha --exit",
     "build": "npm install && npm run typecheck",
     "tsc": "tsc --project tsconfig.json",