diff --git a/src/lib/actions/agentsMongo.ts b/src/lib/actions/agentsMongo.ts
index cb5af8b..b867f11 100644
--- a/src/lib/actions/agentsMongo.ts
+++ b/src/lib/actions/agentsMongo.ts
@@ -14,8 +14,10 @@ export async function fetchAgentsFromMongo(
   const filter: any = {};
   
   if (!isCompanyRole && SITE_UUID) {
-    if (SITE_UUID === 'all') {
-      const envSites = (process.env.BACKONE_SITE_UUIDS || process.env.BACKONE_SITE_UUID || '').split(',').map(s => s.trim()).filter(Boolean);
+    if (SITE_UUID === 'all' || SITE_UUID === 'test-site' || SITE_UUID === 'default') {
+      // Use dynamic env access to prevent Next.js from inlining undefined during docker build
+      const dynamicEnv = process['env'];
+      const envSites = (dynamicEnv.BACKONE_SITE_UUIDS || dynamicEnv.BACKONE_SITE_UUID || '').split(',').map(s => s.trim()).filter(Boolean);
       if (envSites.length > 0) {
         filter.site_uuid = { $in: [...envSites, 'global'] };
       }