diff --git a/powerdnsadmin/decorators.py b/powerdnsadmin/decorators.py
index e2a35bb..df1e348 100644
--- a/powerdnsadmin/decorators.py
+++ b/powerdnsadmin/decorators.py
@@ -1,7 +1,7 @@
 import base64
 import binascii
 from functools import wraps
-from flask import g, request, abort, current_app, render_template
+from flask import g, request, abort, current_app, Response
 from flask_login import current_user
 
 from .models import User, ApiKey, Setting, Domain, Setting
@@ -409,7 +409,7 @@ def dyndns_login_required(f):
     @wraps(f)
     def decorated_function(*args, **kwargs):
         if current_user.is_authenticated is False:
-            return render_template('dyndns.html', response='badauth'), 200
+            return Response(headers={'WWW-Authenticate': 'Basic'}, status=401)
         return f(*args, **kwargs)
 
     return decorated_function