diff --git a/cast/appsettings.py b/cast/appsettings.py
index eff81d67..244b5641 100644
--- a/cast/appsettings.py
+++ b/cast/appsettings.py
@@ -12,7 +12,7 @@
 POST_LIST_PAGINATION: int = getattr(settings, "POST_LIST_PAGINATION", 5)
 DELETE_WAGTAIL_IMAGES: bool = getattr(settings, "DELETE_WAGTAIL_IMAGES", True)
 CAST_FILTERSET_FACETS: list[str] = getattr(
-    settings, "CAST_FILTERSET_FACETS", ["search", "date", "date_facets", "category_facets", "tag_facets"]
+    settings, "CAST_FILTERSET_FACETS", ["search", "date", "date_facets", "category_facets", "tag_facets", "o"]
 )
 
 SettingValue = Union[str, bool, int]