diff --git a/ui/vite.config.ts b/ui/vite.config.ts
index a7a6c1c5..f57ee64f 100644
--- a/ui/vite.config.ts
+++ b/ui/vite.config.ts
@@ -6,12 +6,16 @@ import { VitePWA } from 'vite-plugin-pwa'
 import { fetchTenantNames } from './src/services/tenants'
 
 export default defineConfig(async ({ mode }) => {
-  const baseDomains = ['sozsoft.com', 'dev.sozsoft.com']
   const env = loadEnv(mode, process.cwd(), '')
   const apiUrl = env.VITE_API_URL
-  const tenantNames = await fetchTenantNames(apiUrl)
+  const baseDomains = ['sozsoft.com', 'dev.sozsoft.com']
+  const tenantNames = (await fetchTenantNames(apiUrl)).map((n) => n.trim().toLowerCase())
   const tenantHosts = tenantNames.flatMap((t) => baseDomains.map((d) => `${t}.${d}`))
   const allowedHosts = Array.from(new Set(['localhost', ...baseDomains, ...tenantHosts]))
+
+  console.log('[vite] tenants:', tenantNames)
+  console.log('[vite] allowedHosts:', allowedHosts)
+
   return {
     plugins: [
       react({