diff --git a/members/migrations/0052_alter_activity_address.py b/members/migrations/0052_alter_activity_address.py
new file mode 100644
index 00000000..99f71e3f
--- /dev/null
+++ b/members/migrations/0052_alter_activity_address.py
@@ -0,0 +1,23 @@
+# Generated by Django 4.2.11 on 2024-05-26 16:15
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("members", "0051_alter_address_region"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="activity",
+            name="address",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.PROTECT,
+                to="members.address",
+                verbose_name="Adresse",
+            ),
+        ),
+    ]
diff --git a/members/models/activity.py b/members/models/activity.py
index ee77d066..56ebd14e 100644
--- a/members/models/activity.py
+++ b/members/models/activity.py
@@ -72,7 +72,7 @@ class Meta:
         "Aktiviteten gør personen til medlem", default=True, help_text=help_temp
     )
     address = models.ForeignKey(
-        "Address", on_delete=models.PROTECT, verbose_name="Adresse", default=1
+        "Address", on_delete=models.PROTECT, verbose_name="Adresse", null=False
     )
 
     def is_historic(self):