diff --git a/cotisations/templates/cotisations/facture.html b/cotisations/templates/cotisations/facture.html
index d708b407..dc8648ac 100644
--- a/cotisations/templates/cotisations/facture.html
+++ b/cotisations/templates/cotisations/facture.html
@@ -34,6 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 <form class="form" method="post">
     {% csrf_token %}
+    {% if articlesformset %}
     <h3>{% trans "Invoice's articles" %}</h3>
     <div id="form_set" class="form-group">
         {{ articlesformset.management_form }}
@@ -54,11 +55,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
         Total price : <span id="total_price">0,00</span> €
         {% endblocktrans %}
     </p>
+    {% endif %}
     {% bootstrap_form factureform %}
     {% bootstrap_button action_name button_type='submit' icon='star' %}
 </form>
 
-
+{% if articlesformset %}
 <script type="text/javascript">
     var prices = {};
     {% for article in articles %}
@@ -133,6 +135,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
         update_price();
     });
 </script>
-
+{% endif %}
 
 {% endblock %}
diff --git a/cotisations/views.py b/cotisations/views.py
index 5687a0fa..78ee0d74 100644
--- a/cotisations/views.py
+++ b/cotisations/views.py
@@ -489,7 +489,7 @@ def add_paiement(request):
 # TODO : chnage paiement to Payment
 @login_required
 @can_edit(Paiement)
-def edit_paiement(request, paiement_instance, *_kwargs):
+def edit_paiement(request, paiement_instance, **_kwargs):
     """
     View used to edit a payment method.
     """
diff --git a/re2o/acl.py b/re2o/acl.py
index 0acc710a..6ab34350 100644
--- a/re2o/acl.py
+++ b/re2o/acl.py
@@ -171,13 +171,13 @@ def can_delete_set(model):
             all_objects = model.objects.all()
             instances_id = []
             for instance in all_objects:
-                can, msg = instance.can_delete(request.user)
+                can, _msg = instance.can_delete(request.user)
                 if can:
                     instances_id.append(instance.id)
             instances = model.objects.filter(id__in=instances_id)
             if not instances:
                 messages.error(
-                    request, msg or "Vous ne pouvez pas accéder à ce menu")
+                    request, "Vous ne pouvez pas accéder à ce menu")
                 return redirect(reverse(
                     'users:profil',
                     kwargs={'userid': str(request.user.id)}