diff --git a/kfet/forms.py b/kfet/forms.py
index 61d4e525..021b8411 100644
--- a/kfet/forms.py
+++ b/kfet/forms.py
@@ -139,10 +139,9 @@ class KPsulOperationForm(forms.ModelForm):
     class Meta:
         model  = Operation
         fields = ['type', 'amount', 'is_checkout', 'article', 'article_nb']
-"""
-OperationFormSet = modelformset_factory(
+
+KPsulOperationFormSet = modelformset_factory(
         Operation,
         form  = KPsulOperationForm,
         extra = 0,
         min_num = 1, validate_min = True)
-"""
diff --git a/kfet/migrations/0010_auto_20160806_2343.py b/kfet/migrations/0010_auto_20160806_2343.py
new file mode 100644
index 00000000..60c8cc93
--- /dev/null
+++ b/kfet/migrations/0010_auto_20160806_2343.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('kfet', '0009_auto_20160805_0720'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='operation',
+            name='addcost_amount',
+            field=models.DecimalField(max_digits=6, default=0, decimal_places=2),
+        ),
+        migrations.AlterField(
+            model_name='operationgroup',
+            name='amount',
+            field=models.DecimalField(max_digits=6, default=0, decimal_places=2),
+        ),
+        migrations.AlterField(
+            model_name='operationgroup',
+            name='valid_by',
+            field=models.ForeignKey(default=None, related_name='+', to='kfet.Account', blank=True, null=True, on_delete=django.db.models.deletion.PROTECT),
+        ),
+    ]
diff --git a/kfet/views.py b/kfet/views.py
index b7d6cdde..6f478d7d 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -361,12 +361,7 @@ def kpsul(request):
     data['operationgroup_form'] = KPsulOperationGroupForm()
     data['trigramme_form'] = KPsulAccountForm()
     data['checkout_form']  = KPsulCheckoutForm()
-    OperationFormSet = modelformset_factory(
-        Operation,
-        form  = KPsulOperationForm,
-        extra = 0,
-        min_num = 1, validate_min = True)
-    operation_formset = OperationFormSet(queryset=Operation.objects.none())
+    operation_formset = KPsulOperationFormSet(queryset=Operation.objects.none())
     data['operation_formset'] = operation_formset
     return render(request, 'kfet/kpsul.html', data)
 
@@ -408,8 +403,8 @@ def kpsul_perform_operations(request):
         return JsonResponse(data, status=400)
 
     operationgroup_form = KPsulOperationGroupForm(request.POST)
-    operationgroup = operationgroup_form.save(commit = False)
-    operation_formset   = OperationFormSet(request.POST)
+    operationgroup      = operationgroup_form.save(commit = False)
+    operation_formset   = KPsulOperationFormSet(request.POST)
     operations = operation_formset.save(commit = False)
     for operation in operations:
         operationgroup.amount += operation.amount