diff --git a/counter/models.py b/counter/models.py
index d980aaaa..03fc92c6 100644
--- a/counter/models.py
+++ b/counter/models.py
@@ -12,7 +12,7 @@ import string
 from club.models import Club
 from accounting.models import CurrencyField
 from core.models import Group, User
-from subscription.models import Subscriber
+from subscription.models import Subscriber, Subscription
 from subscription.views import get_subscriber
 
 class Customer(models.Model):
@@ -269,6 +269,36 @@ class Selling(models.Model):
             self.customer.amount -= self.quantity * self.unit_price
             self.customer.save()
             self.is_validated = True
+        if self.product.id == settings.SITH_PRODUCT_SUBSCRIPTION_ONE_SEMESTER:
+            s = Subscriber.objects.filter(id=self.customer.user.id).first()
+            sub = Subscription(
+                    member=s,
+                    subscription_type='un-semestre',
+                    payment_method="EBOUTIC",
+                    location="EBOUTIC",
+                    )
+            sub.subscription_start = Subscription.compute_start()
+            sub.subscription_start = Subscription.compute_start(
+                duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'])
+            sub.subscription_end = Subscription.compute_end(
+                    duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'],
+                    start=sub.subscription_start)
+            sub.save()
+        elif self.product.id == settings.SITH_PRODUCT_SUBSCRIPTION_TWO_SEMESTERS:
+            s = Subscriber.objects.filter(id=self.customer.user.id).first()
+            sub = Subscription(
+                    member=s,
+                    subscription_type='deux-semestres',
+                    payment_method="EBOUTIC",
+                    location="EBOUTIC",
+                    )
+            sub.subscription_start = Subscription.compute_start()
+            sub.subscription_start = Subscription.compute_start(
+                duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'])
+            sub.subscription_end = Subscription.compute_end(
+                    duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'],
+                    start=sub.subscription_start)
+            sub.save()
         super(Selling, self).save(*args, **kwargs)
 
 class Permanency(models.Model):
diff --git a/eboutic/models.py b/eboutic/models.py
index 98c019d5..ed14125c 100644
--- a/eboutic/models.py
+++ b/eboutic/models.py
@@ -93,36 +93,6 @@ class Invoice(models.Model):
                         date=self.date,
                         )
                 new.save()
-            if i.product_id == settings.SITH_PRODUCT_SUBSCRIPTION_ONE_SEMESTER:
-                s = Subscriber.objects.filter(id=self.user.id).first()
-                sub = Subscription(
-                        member=s,
-                        subscription_type='un-semestre',
-                        payment_method="EBOUTIC",
-                        location="EBOUTIC",
-                        )
-                sub.subscription_start = Subscription.compute_start()
-                sub.subscription_start = Subscription.compute_start(
-                    duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'])
-                sub.subscription_end = Subscription.compute_end(
-                        duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'],
-                        start=sub.subscription_start)
-                sub.save()
-            elif i.product_id == settings.SITH_PRODUCT_SUBSCRIPTION_TWO_SEMESTERS:
-                s = Subscriber.objects.filter(id=self.user.id).first()
-                sub = Subscription(
-                        member=s,
-                        subscription_type='deux-semestres',
-                        payment_method="EBOUTIC",
-                        location="EBOUTIC",
-                        )
-                sub.subscription_start = Subscription.compute_start()
-                sub.subscription_start = Subscription.compute_start(
-                    duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'])
-                sub.subscription_end = Subscription.compute_end(
-                        duration=settings.SITH_SUBSCRIPTIONS[sub.subscription_type]['duration'],
-                        start=sub.subscription_start)
-                sub.save()
         self.validated = True
         self.save()