diff --git a/exposition/views.py b/exposition/views.py
index 7219441f..0b031e4d 100644
--- a/exposition/views.py
+++ b/exposition/views.py
@@ -412,7 +412,7 @@ def add_note(request, slug):
         if Note.objects.filter(user__id=user.id, content_type=ct, object_id=object_id).exists():
             Note.objects.filter(user__id=user.id, content_type=ct, object_id=object_id).update(text=text)
         else:
-            Note.objects.create(content_type=ct, object_id=object_id, user=user, text=text)
+            Note.objects.create(content_type=ct, object_id=object_id, user=user.id, text=text)
 
         user.calendar.expositions.add(e)