diff --git a/dav_events/models/event.py b/dav_events/models/event.py
index e53008a..eb4b550 100644
--- a/dav_events/models/event.py
+++ b/dav_events/models/event.py
@@ -528,8 +528,9 @@ class Event(models.Model):
         template = get_template(template_name)
         return template.render(self.get_template_context())
 
-    def as_dict(self, json=True):
+    def as_dict(self, json=True, add_registration_url=False):
         d = {
+            'id': self.id,
             'number': self.get_number(),
             'title': self.title,
             'description': self.description,
@@ -617,4 +618,7 @@ class Event(models.Model):
                 value = getattr(self, field)
                 d[field] = value
 
+        if add_registration_url:
+            d['registration_url'] = reverse('dav_registration:event', kwargs={'pk': self.pk})
+
         return d
\ No newline at end of file
diff --git a/dav_registration/views.py b/dav_registration/views.py
index 09755e9..6e3f5cc 100644
--- a/dav_registration/views.py
+++ b/dav_registration/views.py
@@ -84,7 +84,7 @@ def EventListAsJSONView(request):
         filter_exp &= Q(sport__in=filter_cleaned) | Q(level__in=filter_cleaned)
 
     qs = Event.objects.filter(filter_exp).order_by('first_day', 'number').distinct()
-    data = [event.as_dict(json=True) for event in qs]
+    data = [event.as_dict(json=True, add_registration_url=True) for event in qs]
     response = JsonResponse(data, safe=False)
     return response