diff --git a/suds/properties.py b/suds/properties.py
index c851526..b8d69ef 100644
--- a/suds/properties.py
+++ b/suds/properties.py
@@ -128,6 +128,8 @@ def __hash__(self):
         return hash(self.target)
 
     def __getattr__(self, name):
+        if name == "__setstate__": 
+            raise AttributeError
         return getattr(self.target, name)