diff --git a/authentic2_idp_ltpa/__init__.py b/authentic2_idp_ltpa/__init__.py
index 618304a..49d1aa8 100644
--- a/authentic2_idp_ltpa/__init__.py
+++ b/authentic2_idp_ltpa/__init__.py
@@ -1,5 +1,9 @@
+import logging
+
 __version__ = '1.0'
 
+logger = logging.getLogger(__name__)
+
 class Plugin(object):
     def get_before_urls(self):
         from . import urls
@@ -12,17 +16,22 @@ class Plugin(object):
          return ['authentic2_idp_ltpa.middleware.LTPAMiddleware']
 
     def logout_list(self, request):
-        if request.session.get('ltpa', False):
-            url = resolve('ltpa-logout')
-            ctx = {
-                'needs_iframe': False,
-                'name': 'Domino',
-                'url': url,
-                'iframe_timeout': 0,
-            }
-            content = render_to_string('idp/saml/logout_fragment.html', ctx)
-            return [content]
-        return []
+        from django.template.loader import render_to_string
+        from django.core.urlresolvers import reverse
+
+        from . import app_settings
+        if app_settings.COOKIE_NAME not in request.COOKIES:
+            return []
+        url = reverse('ltpa-logout')
+        ctx = {
+            'needs_iframe': False,
+            'name': 'Domino',
+            'url': url,
+            'iframe_timeout': 0,
+        }
+        content = render_to_string('idp/saml/logout_fragment.html', ctx)
+        logging.debug('logout %r', content)
+        return [content]
 
 
 from django.utils.six.moves import http_cookies