diff --git a/src/lib.rs b/src/lib.rs
index 53c7b19e7..da04b682d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,3 @@
-mod available_documents_ids;
 mod criterion;
 mod fields_ids_map;
 mod index;
@@ -16,7 +15,6 @@ use std::collections::HashMap;
 use std::hash::BuildHasherDefault;
 use fxhash::{FxHasher32, FxHasher64};
 
-pub use self::available_documents_ids::AvailableDocumentsIds;
 pub use self::criterion::{Criterion, default_criteria};
 pub use self::fields_ids_map::FieldsIdsMap;
 pub use self::index::Index;
diff --git a/src/subcommand/serve.rs b/src/subcommand/serve.rs
index 43302e7a1..8a7ba3784 100644
--- a/src/subcommand/serve.rs
+++ b/src/subcommand/serve.rs
@@ -23,7 +23,8 @@ use warp::{Filter, http::Response};
 
 use crate::indexing::{self, IndexerOpt, Transform, TransformOutput};
 use crate::tokenizer::{simple_tokenizer, TokenType};
-use crate::{Index, UpdateStore, SearchResult, AvailableDocumentsIds};
+use crate::update::AvailableDocumentsIds;
+use crate::{Index, UpdateStore, SearchResult};
 
 #[derive(Debug, StructOpt)]
 /// The HTTP main server of the milli project.
diff --git a/src/available_documents_ids.rs b/src/update/available_documents_ids.rs
similarity index 100%
rename from src/available_documents_ids.rs
rename to src/update/available_documents_ids.rs
diff --git a/src/update/mod.rs b/src/update/mod.rs
index 59b125020..aa5ad7e26 100644
--- a/src/update/mod.rs
+++ b/src/update/mod.rs
@@ -1,5 +1,7 @@
+mod available_documents_ids;
 mod update_builder;
 mod update_store;
 
+pub use self::available_documents_ids::AvailableDocumentsIds;
 pub use self::update_builder::UpdateBuilder;
 pub use self::update_store::UpdateStore;