diff --git a/django/website/data_layer/migrations/0002_auto_20150619_2132.py b/django/website/data_layer/migrations/0002_auto_20150619_2132.py
new file mode 100644
index 0000000000000000000000000000000000000000..3b87d3c7c3891bbf77859167c0ecccc7418d5f37
--- /dev/null
+++ b/django/website/data_layer/migrations/0002_auto_20150619_2132.py
@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('data_layer', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='message',
+            name='timestamp',
+            field=models.DateTimeField(null=True),
+        ),
+    ]
diff --git a/django/website/data_layer/models.py b/django/website/data_layer/models.py
index 744a930594b198f49ac83b38d16cecfbed46ab41..441a68e583d030b4f622da93515265305b761611 100644
--- a/django/website/data_layer/models.py
+++ b/django/website/data_layer/models.py
@@ -9,4 +9,4 @@ class DataLayerModel(models.Model):
 
 class Message(DataLayerModel):
     body = models.TextField()
-    timestamp = models.DateTimeField()
+    timestamp = models.DateTimeField(null=True)