diff --git a/milli/src/update/words_prefix_position_docids.rs b/milli/src/update/words_prefix_position_docids.rs
index 2846c76f7..b09555264 100644
--- a/milli/src/update/words_prefix_position_docids.rs
+++ b/milli/src/update/words_prefix_position_docids.rs
@@ -8,13 +8,13 @@ use heed::{BytesDecode, BytesEncode};
 use log::debug;
 
 use crate::error::SerializationError;
-use crate::heed_codec::{StrBEU16Codec, StrBEU32Codec};
+use crate::heed_codec::StrBEU16Codec;
 use crate::index::main_key::WORDS_PREFIXES_FST_KEY;
 use crate::update::index_documents::{
     create_sorter, merge_cbo_roaring_bitmaps, sorter_into_lmdb_database, valid_lmdb_key,
     CursorClonableMmap, MergeFn,
 };
-use crate::{relative_from_absolute_position, Index, Result};
+use crate::{Index, Result};
 
 pub struct WordPrefixPositionDocids<'t, 'u, 'i> {
     wtxn: &'t mut heed::RwTxn<'i, 'u>,