diff --git a/tiramisu/api.py b/tiramisu/api.py
index 2935d7e..dc1bccd 100644
--- a/tiramisu/api.py
+++ b/tiramisu/api.py
@@ -1451,10 +1451,12 @@ class _TiramisuContextMetaConfig(_TiramisuContextMixConfig):
     def new(self,
             session_id,
             persistent=False,
+            storage=None,
             type='config'):
         """Create and add a new config"""
         new_config = self._config_bag.context.new_config(session_id=session_id,
                                                          persistent=persistent,
+                                                         storage=storage,
                                                          type_=type)
         return self._return_config(new_config)
 
diff --git a/tiramisu/config.py b/tiramisu/config.py
index 56495d6..13ac054 100644
--- a/tiramisu/config.py
+++ b/tiramisu/config.py
@@ -1214,7 +1214,8 @@ class KernelMetaConfig(KernelMixConfig):
     def new_config(self,
                    session_id,
                    type_='config',
-                   persistent=False):
+                   persistent=False,
+                   storage=None):
         if session_id in [child.impl_getname() for child in self._impl_children]:
             raise ConflictError(_('config name must be uniq in '
                                   'groupconfig for {0}').format(session_id))
@@ -1224,18 +1225,21 @@ class KernelMetaConfig(KernelMixConfig):
             config = KernelConfig(self._impl_descr,
                                   session_id=session_id,
                                   persistent=persistent,
+                                  storage=storage,
                                   display_name=self._display_name)
         elif type_ == 'metaconfig':
             config = KernelMetaConfig([],
                                       optiondescription=self._impl_descr,
                                       session_id=session_id,
                                       persistent=persistent,
+                                      storage=storage,
                                       display_name=self._display_name)
         elif type_ == 'mixconfig':
             config = KernelMixConfig(children=[],
                                      optiondescription=self._impl_descr,
                                      session_id=session_id,
                                      persistent=persistent,
+                                     storage=storage,
                                      display_name=self._display_name)
         # Copy context properties/permissives
         if new: