diff --git a/lib/services/cloud/firebase_account_sync_service.dart b/lib/services/cloud/firebase_account_sync_service.dart
index 5279967..4366476 100644
--- a/lib/services/cloud/firebase_account_sync_service.dart
+++ b/lib/services/cloud/firebase_account_sync_service.dart
@@ -13,12 +13,10 @@ class FirebaseAccountSyncService {
   final FirebaseFirestore? _firestore;
 
   FirebaseAccountSyncService({
-    required AppDatabase db,
-    required AuthService auth,
+    required this._db,
+    required this._auth,
     FirebaseFirestore? firestore,
-  })  : _db = db,
-        _auth = auth,
-        _firestore = firestore ?? _resolveFirestore();
+  }) : _firestore = firestore ?? _resolveFirestore();
 
   static FirebaseFirestore? _resolveFirestore() {
     try {