diff --git a/production/migrations/0016_remove_productionevent_noted_by_contributor.py b/production/migrations/0016_remove_productionevent_noted_by_contributor.py
index 67736d4913a85b1849af2df45a9980e9d27d719f..d204f883e3d7bdbd7fe5a7cb4653a5cc0fde8501 100644
--- a/production/migrations/0016_remove_productionevent_noted_by_contributor.py
+++ b/production/migrations/0016_remove_productionevent_noted_by_contributor.py
@@ -2,7 +2,8 @@
 # Generated by Django 1.11.4 on 2017-09-14 20:46
 from __future__ import unicode_literals
 
-from django.db import migrations
+from django.db import migrations, models
+import django.db.models.deletion
 
 
 class Migration(migrations.Migration):
@@ -12,6 +13,11 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
+        migrations.AlterField(
+            model_name='productionevent',
+            name='noted_by_contributor',
+            field=models.ForeignKey(default=1, null=True, on_delete=django.db.models.deletion.CASCADE, to='scipost.Contributor'),
+        ),
         migrations.RemoveField(
             model_name='productionevent',
             name='noted_by_contributor',