diff --git a/netbox/netbox/filtersets.py b/netbox/netbox/filtersets.py
index e3bd33298..41a22859d 100644
--- a/netbox/netbox/filtersets.py
+++ b/netbox/netbox/filtersets.py
@@ -180,9 +180,11 @@ class BaseFilterSet(django_filters.FilterSet):
                     # create the new filter with the same type because there is no guarantee the defined type
                     # is the same as the default type for the field
                     resolve_field(field, lookup_expr)  # Will raise FieldLookupError if the lookup is invalid
-                    for field_to_remove in ('choices', 'null_value'):
-                        existing_filter_extra.pop(field_to_remove, None)
-                    filter_cls = django_filters.BooleanFilter if lookup_expr == 'empty' else type(existing_filter)
+                    filter_cls = type(existing_filter)
+                    if lookup_expr == 'empty':
+                        filter_cls = django_filters.BooleanFilter
+                        for field_to_remove in ('choices', 'null_value'):
+                            existing_filter_extra.pop(field_to_remove, None)
                     new_filter = filter_cls(
                         field_name=field_name,
                         lookup_expr=lookup_expr,