diff --git a/meilisearch-http/src/index/mod.rs b/meilisearch-http/src/index/mod.rs
index ceaa6103e..d3f30bf2e 100644
--- a/meilisearch-http/src/index/mod.rs
+++ b/meilisearch-http/src/index/mod.rs
@@ -8,7 +8,7 @@ use serde_json::{Map, Value};
 
 use crate::helpers::EnvSizer;
 pub use search::{SearchQuery, SearchResult, DEFAULT_SEARCH_LIMIT};
-pub use updates::{Facets, Settings, Checked, Unchecked, UpdateResult};
+pub use updates::{Facets, Settings, Checked, Unchecked};
 use serde::{de::Deserializer, Deserialize};
 
 mod search;
diff --git a/meilisearch-http/src/index/updates.rs b/meilisearch-http/src/index/updates.rs
index 67edc15d0..0762c8550 100644
--- a/meilisearch-http/src/index/updates.rs
+++ b/meilisearch-http/src/index/updates.rs
@@ -8,9 +8,10 @@ use log::info;
 use milli::update::{IndexDocumentsMethod, UpdateBuilder, UpdateFormat};
 use serde::{Deserialize, Serialize};
 
-use super::{deserialize_some, Index};
 use crate::index_controller::UpdateResult;
 
+use super::{deserialize_some, Index};
+
 
 #[derive(Clone, Default, Debug)]
 pub struct Checked;
@@ -35,7 +36,11 @@ pub struct Settings<T> {
     )]
     pub searchable_attributes: Option<Option<Vec<String>>>,
 
-    #[serde(default)]
+    #[serde(
+        default,
+        deserialize_with = "deserialize_some",
+        skip_serializing_if = "Option::is_none"
+    )]
     pub attributes_for_faceting: Option<Option<HashMap<String, String>>>,
 
     #[serde(
diff --git a/meilisearch-http/src/index_controller/dump_actor/mod.rs b/meilisearch-http/src/index_controller/dump_actor/mod.rs
index f79cd839b..a8409f623 100644
--- a/meilisearch-http/src/index_controller/dump_actor/mod.rs
+++ b/meilisearch-http/src/index_controller/dump_actor/mod.rs
@@ -244,9 +244,6 @@ pub fn load_dump(
 
     // finally we can move all the unprocessed update file into our new DB
     let update_path = tmp_dir_path.join("update_files");
-    let files: Vec<_> = std::fs::read_dir(&db_path.join("updates"))?
-        .map(|file| file.unwrap().path())
-        .collect();
     let db_update_path = db_path.join("updates/update_files");
     eprintln!("path {:?} exists: {:?}", update_path, update_path.exists());
     eprintln!(
diff --git a/meilisearch-http/src/index_controller/dump_actor/v1.rs b/meilisearch-http/src/index_controller/dump_actor/v1.rs
index 92f8bf712..33fab6930 100644
--- a/meilisearch-http/src/index_controller/dump_actor/v1.rs
+++ b/meilisearch-http/src/index_controller/dump_actor/v1.rs
@@ -1,8 +1,8 @@
-use std::collections::{BTreeMap, BTreeSet};
+use std::{collections::{BTreeMap, BTreeSet}, marker::PhantomData};
 
 use log::warn;
 use serde::{Deserialize, Serialize};
-use crate::index_controller;
+use crate::{index::Unchecked, index_controller};
 use crate::index::deserialize_some;
 use super::*;
 
@@ -27,7 +27,7 @@ struct Settings {
 }
 
 /// we need to **always** be able to convert the old settings to the settings currently being used
-impl From<Settings> for index_controller::Settings {
+impl From<Settings> for index_controller::Settings<Unchecked> {
     fn from(settings: Settings) -> Self {
         if settings.synonyms.flatten().is_some() {
             error!("`synonyms` are not yet implemented and thus will be ignored");
@@ -63,6 +63,7 @@ impl From<Settings> for index_controller::Settings {
                 }).collect())),
             // we need to convert the old `Vec<String>` into a `BTreeSet<String>`
             stop_words: settings.stop_words.map(|o| o.map(|vec| vec.into_iter().collect())),
+            _kind: PhantomData,
         }
     }
 }
@@ -89,9 +90,9 @@ pub fn import_index(size: usize, dump_path: &Path, index_path: &Path, primary_ke
 
     // extract `settings.json` file and import content
     let settings = import_settings(&dump_path)?;
-    let settings: index_controller::Settings = settings.into();
+    let settings: index_controller::Settings<Unchecked> = settings.into();
     let update_builder = UpdateBuilder::new(0);
-    index.update_settings(&settings, update_builder)?;
+    index.update_settings(&settings.check(), update_builder)?;
 
     let update_builder = UpdateBuilder::new(1);
     let file = File::open(&dump_path.join("documents.jsonl"))?;
diff --git a/meilisearch-http/src/index_controller/dump_actor/v2.rs b/meilisearch-http/src/index_controller/dump_actor/v2.rs
index 301268233..d8f43fc58 100644
--- a/meilisearch-http/src/index_controller/dump_actor/v2.rs
+++ b/meilisearch-http/src/index_controller/dump_actor/v2.rs
@@ -1,11 +1,11 @@
 use heed::EnvOpenOptions;
 use milli::{update::{IndexDocumentsMethod, UpdateBuilder, UpdateFormat}};
-use crate::index::Index;
+use crate::index::{Checked, Index};
 use crate::index_controller::Settings;
 use std::{fs::File, path::Path, sync::Arc};
 
 /// Extract Settings from `settings.json` file present at provided `dir_path`
-fn import_settings(dir_path: &Path) -> anyhow::Result<Settings> {
+fn import_settings(dir_path: &Path) -> anyhow::Result<Settings<Checked>> {
     let path = dir_path.join("settings.json");
     let file = File::open(path)?;
     let reader = std::io::BufReader::new(file);