diff --git a/server/books/schema/queries.py b/server/books/schema/queries.py
index c2894fbc..72f6b604 100644
--- a/server/books/schema/queries.py
+++ b/server/books/schema/queries.py
@@ -187,7 +187,7 @@ class ModuleNode(DjangoObjectType):
         return self.objective_groups.all() \
             .prefetch_related('hidden_for__schoolclass') \
             .prefetch_related('visible_for__schoolclass') \
-            .prefetch_related('objective_progress')
+            .prefetch_related('objectives__objective_progress')
 
 
 class TopicNode(DjangoObjectType):