diff --git a/tiramisu/autolib.py b/tiramisu/autolib.py
index 17c8a67..e92c663 100644
--- a/tiramisu/autolib.py
+++ b/tiramisu/autolib.py
@@ -20,6 +20,7 @@
 # ____________________________________________________________
 "enables us to carry out a calculation and return an option's value"
 from tiramisu.error import PropertiesOptionError, ConfigError
+from tiramisu.i18n import _
 # ____________________________________________________________
 # automatic Option object
 #def special_owner_factory(name, owner, value,