diff --git a/script/hassfest/translations.py b/script/hassfest/translations.py
index 17da80c3e8a..75886eedc6f 100644
--- a/script/hassfest/translations.py
+++ b/script/hassfest/translations.py
@@ -98,6 +98,7 @@ def gen_data_entry_schema(
         },
         vol.Optional("error"): {str: cv.string_with_no_html},
         vol.Optional("abort"): {str: cv.string_with_no_html},
+        vol.Optional("progress"): {str: cv.string_with_no_html},
         vol.Optional("create_entry"): {str: cv.string_with_no_html},
     }
     if flow_title == REQUIRED: