diff --git a/tiramisu/error.py b/tiramisu/error.py
index aa035b1..ba7b96e 100644
--- a/tiramisu/error.py
+++ b/tiramisu/error.py
@@ -52,7 +52,7 @@ class PropertiesOptionError(AttributeError):
             msg = display_list(msg)
             return _('cannot access to {0} {1} because has {2} {3}').format(self._type, self._datas['path'], prop_msg, msg)
         else:
-            return self.message
+            return super(PropertiesOptionError, self).__str__()
 
 
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