diff --git a/src/re/model.py b/src/re/model.py
index 0bac835fe617c34f6dbf15d47235750a34ba5226..7b38064ca279618beca472a4fce6812a4197dc31 100644
--- a/src/re/model.py
+++ b/src/re/model.py
@@ -125,9 +125,9 @@ class _NoValue():
 
 
 class LazyModel(metaclass=ModelMeta):
-    _domain: Any = field(default=_NoValue)
-    _target: Any = field(default=_NoValue)
-    _init: Any = field(default=_NoValue)
+    _domain: Any = field()
+    _target: Any = field()
+    _init: Any = field()
 
     def __init__(self, domain=_NoValue, target=_NoValue, init=_NoValue):
         self._domain = domain