diff --git a/backend/e2e-tester/simulation.js b/backend/e2e-tester/simulation.js
index 9186208..49975e6 100644
--- a/backend/e2e-tester/simulation.js
+++ b/backend/e2e-tester/simulation.js
@@ -2,7 +2,8 @@ import readline from 'readline';
 import { io } from 'socket.io-client';
 
 const API_URL = process.env.API_URL || 'http://localhost:4010/api';
-const TENANT_ID = 'tripz'; // Change this if you have a different slug
+// slug المستأجر — «siro» هو المزروع على السيرفر (راجع لوق [Seed] عند الإقلاع).
+const TENANT_ID = process.env.TENANT_ID || 'siro';
 
 const rl = readline.createInterface({
   input: process.stdin,