diff --git a/combo_plugin_gnm/templatetags/gnm.py b/combo_plugin_gnm/templatetags/gnm.py
index 1d0047c..e694774 100644
--- a/combo_plugin_gnm/templatetags/gnm.py
+++ b/combo_plugin_gnm/templatetags/gnm.py
@@ -639,7 +639,7 @@ def get_suggestions(request, user_data, places_data):
     #  air quality
     #  pollen
 
-    if not getattr(request, 'user', None) or not request.user.is_authenticated():
+    if not getattr(request, 'user', None) or not request.user.is_authenticated:
         # no user
         return ['no user']
 
diff --git a/combo_plugin_gnm/views.py b/combo_plugin_gnm/views.py
index ad02463..b31c3ac 100644
--- a/combo_plugin_gnm/views.py
+++ b/combo_plugin_gnm/views.py
@@ -34,7 +34,7 @@ def plusone(request, *args, **kwargs):
     if reference:
         context = RequestContext(request, {'request': request})
         passerelle_url = '[passerelle_url]jsondatastore/plus1/data/create'
-        if request.user and request.user.is_authenticated():
+        if request.user and request.user.is_authenticated:
             passerelle_url += '?name_id=[user_nameid]'
         passerelle_url = get_templated_url(passerelle_url, context)
         headers = {'content-type': 'application/json'}
@@ -48,7 +48,7 @@ def plusone(request, *args, **kwargs):
         )
 
     messages.info(request, u'Merci, votre confirmation nous est utile.')
-    if request.user and request.user.is_authenticated():
+    if request.user and request.user.is_authenticated:
         return HttpResponseRedirect('/')
     else:
         return HttpResponseRedirect('/services/')