diff --git a/more_admin_filters/filters.py b/more_admin_filters/filters.py
index 951c964..2795bf0 100644
--- a/more_admin_filters/filters.py
+++ b/more_admin_filters/filters.py
@@ -141,7 +141,7 @@ class MultiSelectFilter(MultiSelectMixin, admin.AllValuesFieldListFilter):
         return used_parameters
 
     def choices(self, changelist):
-        add_facets = changelist.add_facets
+        add_facets = getattr(changelist, "add_facets", False) 
         facet_counts = self.get_facet_queryset(changelist) if add_facets else None
         yield {
             'selected': not self.lookup_vals and self.lookup_val_isnull is None,
@@ -195,7 +195,7 @@ class MultiSelectRelatedFilter(MultiSelectMixin, admin.RelatedFieldListFilter):
         self.empty_value_display = model_admin.get_empty_value_display()
 
     def choices(self, changelist):
-        add_facets = changelist.add_facets
+        add_facets = getattr(changelist, "add_facets", False) 
         facet_counts = self.get_facet_queryset(changelist) if add_facets else None
         yield {
             'selected': not self.lookup_vals and not self.lookup_val_isnull,
@@ -247,7 +247,7 @@ class MultiSelectDropdownFilter(MultiSelectFilter):
     template = 'more_admin_filters/multiselectdropdownfilter.html'
 
     def choices(self, changelist):
-        add_facets = changelist.add_facets
+        add_facets = getattr(changelist, "add_facets", False) 
         facet_counts = self.get_facet_queryset(changelist) if add_facets else None
         query_string = changelist.get_query_string({}, [self.lookup_kwarg, self.lookup_kwarg_isnull])
         yield {
@@ -292,7 +292,7 @@ class MultiSelectRelatedDropdownFilter(MultiSelectRelatedFilter):
     template = 'more_admin_filters/multiselectdropdownfilter.html'
 
     def choices(self, changelist):
-        add_facets = changelist.add_facets
+        add_facets = getattr(changelist, "add_facets", False) 
         facet_counts = self.get_facet_queryset(changelist) if add_facets else None
         query_string = changelist.get_query_string({}, [self.lookup_kwarg, self.lookup_kwarg_isnull])
         yield {