diff --git a/src/gen/lib/eventref.py b/src/gen/lib/eventref.py
index d9f85acf3..7db161bff 100644
--- a/src/gen/lib/eventref.py
+++ b/src/gen/lib/eventref.py
@@ -49,14 +49,6 @@ class EventRef(SecondaryObject, PrivacyBase, NoteBase, AttributeBase, RefBase):
     to the refereneced event.
     """
 
-    __slots__=('__role','ref')
-
-    def __getstate__(self):
-        return{'__role': self.__role,'ref': self.ref}
-    def __setstate__(self,dict_):
-        self.__role = dict_['__role']
-        self.ref = dict_['ref']
-
     def __init__(self, source=None):
         """
         Create a new EventRef instance, copying from the source if present.