diff --git a/tiramisu/config.py b/tiramisu/config.py
index 506b620..2ca919f 100644
--- a/tiramisu/config.py
+++ b/tiramisu/config.py
@@ -706,7 +706,7 @@ class _CommonConfig(SubConfig):
             )._pp_.exportation())
         if self._impl_meta:
             if deep:
-                meta = self._impl_meta().duplicate(deep=deep)
+                meta = self._impl_meta().duplicate(deep=deep, storage=storage)
                 meta._impl_children.append(config)
                 config._impl_meta = weakref.ref(meta)
                 config = meta