diff --git a/atlas/forms.py b/atlas/forms.py
index 5aa955e3..aa2795d5 100755
--- a/atlas/forms.py
+++ b/atlas/forms.py
@@ -464,7 +464,7 @@ class CaseSeriesForm(ModelForm):
 
 
 class CaseCollectionCaseForm(ModelForm):
-    def __init__(self, *args, user, collection, **kwargs):
+    def __init__(self, *args, user, collection=None, **kwargs):
         super(CaseCollectionCaseForm, self).__init__(*args, **kwargs)
 
         queryset = get_cases_available_to_user(user, collection=collection)