diff --git a/atlas/views.py b/atlas/views.py
index 8ebfc277..eb82cc34 100755
--- a/atlas/views.py
+++ b/atlas/views.py
@@ -1083,7 +1083,7 @@ def collection_mark_overview(request, pk):
 
     case_details = CaseDetail.objects.filter(case__in=cases, collection=collection).prefetch_related("case")
 
-    answers = CidReportAnswer.objects.filter(question=case_details)
+    answers = CidReportAnswer.objects.filter(question__in=case_details)
 
     case_map = {}
     for cd in case_details: