diff --git a/django_mailbox/migrations/0004_bytestring_to_unicode.py b/django_mailbox/migrations/0004_bytestring_to_unicode.py
new file mode 100644
index 0000000..fedc46a
--- /dev/null
+++ b/django_mailbox/migrations/0004_bytestring_to_unicode.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_mailbox', '0003_auto_20150409_0316'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='message',
+            name='eml',
+            field=models.FileField(verbose_name='Raw message contents', upload_to='messages', null=True, help_text='Original full content of message'),
+        ),
+        migrations.AlterField(
+            model_name='messageattachment',
+            name='document',
+            field=models.FileField(verbose_name='Document', upload_to='mailbox_attachments/%Y/%m/%d/'),
+        ),
+    ]