diff --git a/atlas/views.py b/atlas/views.py
index 5c560366..d96d4598 100755
--- a/atlas/views.py
+++ b/atlas/views.py
@@ -1081,7 +1081,7 @@ def collection_mark_overview(request, pk):
 
     cases = collection.cases.all().order_by("casedetail__sort_order").prefetch_related()
 
-    case_details = CaseDetail.objects.filter(case__in=cases, collection=collection).prefetch_related("case", "cidreportanswer_set")
+    case_details = CaseDetail.objects.filter(case__in=cases, collection=collection).prefetch_related("case")
 
     answers = CidReportAnswer.objects.filter(question=case_details)