diff --git a/conservancy/usethesource/migrations/0003_comment_email_message_id.py b/conservancy/usethesource/migrations/0003_comment_email_message_id.py
new file mode 100644
index 0000000000000000000000000000000000000000..19d5e7116eeac6a99fd729680a4bc4c0a721adbb
--- /dev/null
+++ b/conservancy/usethesource/migrations/0003_comment_email_message_id.py
@@ -0,0 +1,19 @@
+# Generated by Django 3.2.19 on 2024-01-25 20:59
+
+import conservancy.usethesource.models
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('usethesource', '0002_auto_20231030_1830'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='comment',
+            name='email_message_id',
+            field=models.CharField(default=conservancy.usethesource.models.gen_message_id, max_length=255),
+        ),
+    ]