diff --git a/src/pretix/control/forms/event.py b/src/pretix/control/forms/event.py
index 7cffd6cdb1..f0e7d2ce74 100644
--- a/src/pretix/control/forms/event.py
+++ b/src/pretix/control/forms/event.py
@@ -1214,7 +1214,7 @@ class MailSettingsForm(SettingsForm):
         'mail_text_order_expire_warning': ['event', 'order'],
         'mail_subject_order_expire_warning': ['event', 'order'],
         'mail_subject_order_pending_warning': ['event', 'order'],
-        'mail_text_order_incomplete_payment': ['event', 'order'],
+        'mail_text_order_incomplete_payment': ['event', 'order', 'pending_sum'],
         'mail_subject_order_incomplete_payment': ['event', 'order'],
         'mail_text_order_custom_mail': ['event', 'order'],
         'mail_text_download_reminder': ['event', 'order'],