diff --git a/rest_framework/filters.py b/rest_framework/filters.py
index 42e77d910..a4542df10 100644
--- a/rest_framework/filters.py
+++ b/rest_framework/filters.py
@@ -245,7 +245,7 @@ class OrderingFilter(BaseFilterBackend):
             ]
             valid_fields += [
                 (key, key.title().split('__'))
-                for key in queryset.query.aggregates.keys()
+                for key in queryset.query.annotations.keys()
             ]
         else:
             valid_fields = [