diff --git a/framework/base/src/storage/mappers/ordered_binary_tree_mapper.rs b/framework/base/src/storage/mappers/ordered_binary_tree_mapper.rs
index 8d56c302aa..fbc3de782f 100644
--- a/framework/base/src/storage/mappers/ordered_binary_tree_mapper.rs
+++ b/framework/base/src/storage/mappers/ordered_binary_tree_mapper.rs
@@ -3,10 +3,10 @@ use core::marker::PhantomData;
 use codec::Empty;
 
 use crate::{
-    api::StorageMapperApi,
-    imports::{ErrorApiImpl, ManagedType},
+    api::{ErrorApiImpl, StorageMapperApi},
     storage::StorageKey,
     storage_set,
+    types::ManagedType,
 };
 
 use super::{