diff --git a/evennia/typeclasses/attributes.py b/evennia/typeclasses/attributes.py
index 3a3d8c7281..785d849e0f 100644
--- a/evennia/typeclasses/attributes.py
+++ b/evennia/typeclasses/attributes.py
@@ -176,7 +176,7 @@ class AttributeProperty:
 
     attrhandler_name = "attributes"
 
-    def __init__(self, default=None, default_factory=None, category=None, strattr=False, lockstring="", autocreate=True):
+    def __init__(self, default=None, category=None, strattr=False, lockstring="", autocreate=True):
         """
         Initialize an Attribute as a property descriptor.