diff --git a/tiramisu/api.py b/tiramisu/api.py
index 2b6c04b..354ac6f 100644
--- a/tiramisu/api.py
+++ b/tiramisu/api.py
@@ -245,6 +245,7 @@ class TiramisuOptionOption(CommonTiramisuOption):
 
 class TiramisuOptionOwner(CommonTiramisuOption):
     """manager option's owner"""
+    allow_unrestraint = True
 
     def __init__(self,
                  name,