diff --git a/wagtail/tests/testapp/migrations/0007_jadeformpage.py b/wagtail/tests/testapp/migrations/0007_jadeformpage.py
index 7570381194..51ead790b9 100644
--- a/wagtail/tests/testapp/migrations/0007_jadeformpage.py
+++ b/wagtail/tests/testapp/migrations/0007_jadeformpage.py
@@ -36,7 +36,7 @@ class Migration(migrations.Migration):
             name='JadeFormPage',
             fields=[
                 ('page_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='wagtailcore.Page')),
-                ('to_address', models.CharField(blank=True, help_text='Optional - form submissions will be emailed to this address', max_length=255, verbose_name='to address')),
+                ('to_address', models.CharField(blank=True, help_text='Optional - form submissions will be emailed to these addresses. Separate multiple addresses by comma.', max_length=255, verbose_name='to address')),
                 ('from_address', models.CharField(blank=True, max_length=255, verbose_name='from address')),
                 ('subject', models.CharField(blank=True, max_length=255, verbose_name='subject')),
             ],