diff --git a/apps/search_indexes/documents/news.py b/apps/search_indexes/documents/news.py
index b24daeb1..4f7998d3 100644
--- a/apps/search_indexes/documents/news.py
+++ b/apps/search_indexes/documents/news.py
@@ -71,5 +71,5 @@ class NewsDocument(Document):
         The related_models option should be used with caution because it can lead in the index
         to the updating of a lot of items.
         """
-        if isinstance(related_instance, models.NewsType) and hasattr(related_instance, 'news_set'):
-            return related_instance.news_set.all()
+        if isinstance(related_instance, models.NewsType) and hasattr(related_instance, 'news'):
+            return related_instance.news.all()