diff --git a/contrib/onelab/python/onelab.py b/contrib/onelab/python/onelab.py
index 01195a7af8c9dbfee085487af3b0f40e87cd6923..666fe29b92bdf516c1e96c3c2d7144bf30c55a4b 100755
--- a/contrib/onelab/python/onelab.py
+++ b/contrib/onelab/python/onelab.py
@@ -50,7 +50,7 @@ def path(dirname, inp):
 class _parameter() :
   _membersbase = [
     ('name', 'string'), ('label', 'string', ''), ('help', 'string', ''),
-    ('neverChanged', 'int', 0), ('visible', 'int', 1), ('readOnly', 'int', 0), 
+    ('changedValue', 'int', 31), ('visible', 'int', 1), ('readOnly', 'int', 0), 
     ('attributes', ('dict', 'string', 'string'), {}),
     ('clients', ('dict', 'string', 'int'), {})
   ]