diff --git a/greenmine/scrum/api.py b/greenmine/scrum/api.py
index bcd0b3e2..6251f68c 100644
--- a/greenmine/scrum/api.py
+++ b/greenmine/scrum/api.py
@@ -101,11 +101,9 @@ class UserStoryDetail(generics.RetrieveUpdateDestroyAPIView):
 
 
 class IssuesAttachmentFilter(django_filters.FilterSet):
-    issue = django_filters.NumberFilter(name="object_id", lookup_type='exact')
-
     class Meta:
         model = Attachment
-        fields = ['project', 'issue']
+        fields = ['project', 'object_id']
 
 
 class IssuesAttachmentList(generics.ListCreateAPIView):