diff --git a/netbox/utilities/forms.py b/netbox/utilities/forms.py
index 723b32513c6..bb42b731508 100644
--- a/netbox/utilities/forms.py
+++ b/netbox/utilities/forms.py
@@ -489,7 +489,7 @@ def __init__(self, *args, **kwargs):
 
                 if filters_dict:
                     field.queryset = field.queryset.filter(**filters_dict)
-                elif not self.is_bound and self.instance and hasattr(self.instance, field_name):
+                elif not self.is_bound and getattr(self, 'instance', None) and hasattr(self.instance, field_name):
                     obj = getattr(self.instance, field_name)
                     if obj is not None:
                         field.queryset = field.queryset.filter(pk=obj.pk)