diff --git a/apps/server/src/app.ts b/apps/server/src/app.ts
index 25cecb3a88..de7954ba06 100644
--- a/apps/server/src/app.ts
+++ b/apps/server/src/app.ts
@@ -4,6 +4,7 @@ import { AppController } from './app.controller';
 import { ConfigModule } from './config';
 import { MetricsModule } from './metrics';
 import { BusinessModules } from './modules';
+import { AuthModule } from './modules/auth';
 import { PrismaModule } from './prisma';
 import { SessionModule } from './session';
 import { StorageModule } from './storage';
@@ -17,6 +18,7 @@ import { RateLimiterModule } from './throttler';
     MetricsModule,
     SessionModule,
     RateLimiterModule,
+    AuthModule,
     ...BusinessModules,
   ],
   controllers: [AppController],
diff --git a/apps/server/tests/sync.spec.ts b/apps/server/tests/sync.spec.ts
new file mode 100644
index 0000000000..fd15d0739d
--- /dev/null
+++ b/apps/server/tests/sync.spec.ts
@@ -0,0 +1,16 @@
+import { Test } from '@nestjs/testing';
+import test from 'ava';
+
+test('should be able to bootstrap sync server', async t => {
+  // set env before import
+  process.env.SERVER_FLAVOR = 'sync';
+  const { AppModule } = await import('../src/app');
+  await t.notThrowsAsync(async () => {
+    const module = await Test.createTestingModule({
+      imports: [AppModule],
+    }).compile();
+    const app = module.createNestApplication();
+    await app.close();
+  });
+  process.env.SERVER_FLAVOR = '';
+});