diff --git a/tiramisu_json_api/api.py b/tiramisu_json_api/api.py
index 1176951..a77ea15 100644
--- a/tiramisu_json_api/api.py
+++ b/tiramisu_json_api/api.py
@@ -113,6 +113,7 @@ class TiramisuOptionOption:
 class TiramisuOptionProperty:
     # config.option(path).property
     def __init__(self,
+                 self.config,
                  path: str,
                  model: Dict) -> None:
         self.path = path
@@ -327,6 +328,7 @@ class TiramisuOptionDescription(_Option):
                                         self.form)
         if subfunc == 'property':
             return TiramisuOptionProperty(self.path,
+                                          self.config,
                                           self.model.get(self.path, {}))
         if subfunc == 'value':
             return TiramisuOptionValue(self.config,
@@ -396,6 +398,7 @@ class TiramisuOption:
             if self.index != None:
                 raise NotImplementedError()
             return TiramisuOptionProperty(self.path,
+                                          self.config,
                                           self.model.get(self.path, {}))
         raise APIError(_('please specify a valid sub function ({})').format(subfunc))