diff --git a/generic/migrations/0025_alter_ciduser_group.py b/generic/migrations/0025_alter_ciduser_group.py
new file mode 100644
index 00000000..8c812f25
--- /dev/null
+++ b/generic/migrations/0025_alter_ciduser_group.py
@@ -0,0 +1,19 @@
+# Generated by Django 3.2.10 on 2022-03-01 18:32
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('generic', '0024_auto_20211231_1044'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='ciduser',
+            name='group',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='generic.cidusergroup'),
+        ),
+    ]
diff --git a/generic/models.py b/generic/models.py
index af535a0b..d5c8cafe 100644
--- a/generic/models.py
+++ b/generic/models.py
@@ -295,7 +295,7 @@ class CidUser(models.Model):
     login_email_sent = models.BooleanField(default=False)
     results_email_sent = models.BooleanField(default=False)
 
-    group = models.ForeignKey("CidUserGroup", on_delete=models.SET_NULL, null=True)
+    group = models.ForeignKey("CidUserGroup", on_delete=models.SET_NULL, null=True, blank=True)
 
     def __str__(self) -> str:
         return str(self.cid)