Woops forgot the migration.

src/camps/migrations/0033_camp_show_schedule.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.2 on 2019-06-24 13:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('camps', '0032_auto_20180917_1754'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='camp',
+            name='show_schedule',
+            field=models.BooleanField(default=True, help_text='Check if the schedule should be shown.'),
+        ),
+    ]