diff --git a/src/c3nav/mapdata/migrations/0090_alter_report_author.py b/src/c3nav/mapdata/migrations/0090_alter_report_author.py
new file mode 100644
index 00000000..f3697daf
--- /dev/null
+++ b/src/c3nav/mapdata/migrations/0090_alter_report_author.py
@@ -0,0 +1,25 @@
+# Generated by Django 4.2.7 on 2023-12-18 10:13
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("mapdata", "0089_groundaltitude"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="report",
+            name="author",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                to=settings.AUTH_USER_MODEL,
+                verbose_name="author",
+            ),
+        ),
+    ]