diff --git a/api/views/vak.py b/api/views/vak.py
index 8bf5898b..51115694 100644
--- a/api/views/vak.py
+++ b/api/views/vak.py
@@ -4,7 +4,7 @@
 
 from django.shortcuts import redirect
 from api.models.vak import Vak
-from api.serializers.vak import VakSerializer
+from api.serializers.vak import VakSerializer, add_students_to_group
 from api.utils import has_permissions, is_lesgever, get_gebruiker
 
 
@@ -116,4 +116,6 @@ def vak_detail_accept_invite(request, id, format=None):
         vak.studenten.add(gebruiker)
     vak.save()
 
+    add_students_to_group(vak)
+
     return redirect("vak_detail", id=vak.vak_id)