diff --git a/meilisearch-core/src/bucket_sort.rs b/meilisearch-core/src/bucket_sort.rs
index 9c3a5fb53..3d3f11587 100644
--- a/meilisearch-core/src/bucket_sort.rs
+++ b/meilisearch-core/src/bucket_sort.rs
@@ -39,7 +39,7 @@ pub fn bucket_sort<'c, FI>(
     postings_lists_store: store::PostingsLists,
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     synonyms_store: store::Synonyms,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
 ) -> MResult<Vec<Document>>
 where
     FI: Fn(DocumentId) -> bool,
@@ -62,7 +62,7 @@ where
             postings_lists_store,
             documents_fields_counts_store,
             synonyms_store,
-            prefix_cache_store,
+            prefix_documents_cache_store,
         );
     }
 
@@ -78,7 +78,7 @@ where
             prefix[..len].copy_from_slice(&automaton.query.as_bytes()[..len]);
 
             let mut documents = Vec::new();
-            let iter = prefix_cache_store.prefix_documents(reader, prefix)?;
+            let iter = prefix_documents_cache_store.prefix_documents(reader, prefix)?;
             for result in iter.skip(range.start).take(range.len()) {
                 let (docid, highlights) = result?;
                 documents.push(Document::from_highlights(docid, &highlights));
@@ -201,7 +201,7 @@ pub fn bucket_sort_with_distinct<'c, FI, FD>(
     postings_lists_store: store::PostingsLists,
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     synonyms_store: store::Synonyms,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
 ) -> MResult<Vec<Document>>
 where
     FI: Fn(DocumentId) -> bool,
diff --git a/meilisearch-core/src/query_builder.rs b/meilisearch-core/src/query_builder.rs
index 56aa038b7..9babe55c7 100644
--- a/meilisearch-core/src/query_builder.rs
+++ b/meilisearch-core/src/query_builder.rs
@@ -16,7 +16,7 @@ pub struct QueryBuilder<'c, 'f, 'd> {
     postings_lists_store: store::PostingsLists,
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     synonyms_store: store::Synonyms,
-    prefix_cache_store: store::PrefixCache,
+    prefix_cache_store: store::PrefixDocumentsCache,
 }
 
 impl<'c, 'f, 'd> QueryBuilder<'c, 'f, 'd> {
@@ -25,7 +25,7 @@ impl<'c, 'f, 'd> QueryBuilder<'c, 'f, 'd> {
         postings_lists: store::PostingsLists,
         documents_fields_counts: store::DocumentsFieldsCounts,
         synonyms: store::Synonyms,
-        prefix_cache: store::PrefixCache,
+        prefix_cache: store::PrefixDocumentsCache,
     ) -> QueryBuilder<'c, 'f, 'd> {
         QueryBuilder::with_criteria(
             main,
@@ -42,7 +42,7 @@ impl<'c, 'f, 'd> QueryBuilder<'c, 'f, 'd> {
         postings_lists: store::PostingsLists,
         documents_fields_counts: store::DocumentsFieldsCounts,
         synonyms: store::Synonyms,
-        prefix_cache: store::PrefixCache,
+        prefix_cache: store::PrefixDocumentsCache,
         criteria: Criteria<'c>,
     ) -> QueryBuilder<'c, 'f, 'd> {
         QueryBuilder {
diff --git a/meilisearch-core/src/store/mod.rs b/meilisearch-core/src/store/mod.rs
index 072d92004..c76094e83 100644
--- a/meilisearch-core/src/store/mod.rs
+++ b/meilisearch-core/src/store/mod.rs
@@ -1,5 +1,5 @@
 mod docs_words;
-mod prefix_cache;
+mod prefix_documents_cache;
 mod documents_fields;
 mod documents_fields_counts;
 mod main;
@@ -9,7 +9,7 @@ mod updates;
 mod updates_results;
 
 pub use self::docs_words::DocsWords;
-pub use self::prefix_cache::PrefixCache;
+pub use self::prefix_documents_cache::PrefixDocumentsCache;
 pub use self::documents_fields::{DocumentFieldsIter, DocumentsFields};
 pub use self::documents_fields_counts::{
     DocumentFieldsCountsIter, DocumentsFieldsCounts, DocumentsIdsIter,
@@ -76,7 +76,7 @@ fn docs_words_name(name: &str) -> String {
     format!("store-{}-docs-words", name)
 }
 
-fn prefix_cache_name(name: &str) -> String {
+fn prefix_documents_cache_name(name: &str) -> String {
     format!("store-{}-prefix-cache", name)
 }
 
@@ -96,7 +96,7 @@ pub struct Index {
     pub documents_fields_counts: DocumentsFieldsCounts,
     pub synonyms: Synonyms,
     pub docs_words: DocsWords,
-    pub prefix_cache: PrefixCache,
+    pub prefix_documents_cache: PrefixDocumentsCache,
 
     pub updates: Updates,
     pub updates_results: UpdatesResults,
@@ -259,7 +259,7 @@ impl Index {
             self.postings_lists,
             self.documents_fields_counts,
             self.synonyms,
-            self.prefix_cache,
+            self.prefix_documents_cache,
         )
     }
 
@@ -272,7 +272,7 @@ impl Index {
             self.postings_lists,
             self.documents_fields_counts,
             self.synonyms,
-            self.prefix_cache,
+            self.prefix_documents_cache,
             criteria,
         )
     }
@@ -291,7 +291,7 @@ pub fn create(
     let documents_fields_counts_name = documents_fields_counts_name(name);
     let synonyms_name = synonyms_name(name);
     let docs_words_name = docs_words_name(name);
-    let prefix_cache_name = prefix_cache_name(name);
+    let prefix_documents_cache_name = prefix_documents_cache_name(name);
     let updates_name = updates_name(name);
     let updates_results_name = updates_results_name(name);
 
@@ -302,7 +302,7 @@ pub fn create(
     let documents_fields_counts = env.create_database(Some(&documents_fields_counts_name))?;
     let synonyms = env.create_database(Some(&synonyms_name))?;
     let docs_words = env.create_database(Some(&docs_words_name))?;
-    let prefix_cache = env.create_database(Some(&prefix_cache_name))?;
+    let prefix_documents_cache = env.create_database(Some(&prefix_documents_cache_name))?;
     let updates = update_env.create_database(Some(&updates_name))?;
     let updates_results = update_env.create_database(Some(&updates_results_name))?;
 
@@ -315,7 +315,7 @@ pub fn create(
         },
         synonyms: Synonyms { synonyms },
         docs_words: DocsWords { docs_words },
-        prefix_cache: PrefixCache { prefix_cache },
+        prefix_documents_cache: PrefixDocumentsCache { prefix_documents_cache },
         updates: Updates { updates },
         updates_results: UpdatesResults { updates_results },
         updates_notifier,
@@ -335,7 +335,7 @@ pub fn open(
     let documents_fields_counts_name = documents_fields_counts_name(name);
     let synonyms_name = synonyms_name(name);
     let docs_words_name = docs_words_name(name);
-    let prefix_cache_name = prefix_cache_name(name);
+    let prefix_documents_cache_name = prefix_documents_cache_name(name);
     let updates_name = updates_name(name);
     let updates_results_name = updates_results_name(name);
 
@@ -364,8 +364,8 @@ pub fn open(
         Some(docs_words) => docs_words,
         None => return Ok(None),
     };
-    let prefix_cache = match env.open_database(Some(&prefix_cache_name))? {
-        Some(prefix_cache) => prefix_cache,
+    let prefix_documents_cache = match env.open_database(Some(&prefix_documents_cache_name))? {
+        Some(prefix_documents_cache) => prefix_documents_cache,
         None => return Ok(None),
     };
     let updates = match update_env.open_database(Some(&updates_name))? {
@@ -386,7 +386,7 @@ pub fn open(
         },
         synonyms: Synonyms { synonyms },
         docs_words: DocsWords { docs_words },
-        prefix_cache: PrefixCache { prefix_cache },
+        prefix_documents_cache: PrefixDocumentsCache { prefix_documents_cache },
         updates: Updates { updates },
         updates_results: UpdatesResults { updates_results },
         updates_notifier,
@@ -405,7 +405,7 @@ pub fn clear(
     index.documents_fields_counts.clear(writer)?;
     index.synonyms.clear(writer)?;
     index.docs_words.clear(writer)?;
-    index.prefix_cache.clear(writer)?;
+    index.prefix_documents_cache.clear(writer)?;
     index.updates.clear(update_writer)?;
     index.updates_results.clear(update_writer)?;
     Ok(())
diff --git a/meilisearch-core/src/store/prefix_cache.rs b/meilisearch-core/src/store/prefix_documents_cache.rs
similarity index 84%
rename from meilisearch-core/src/store/prefix_cache.rs
rename to meilisearch-core/src/store/prefix_documents_cache.rs
index 5b1621ca8..7c916fec0 100644
--- a/meilisearch-core/src/store/prefix_cache.rs
+++ b/meilisearch-core/src/store/prefix_documents_cache.rs
@@ -27,11 +27,11 @@ impl PrefixKey {
 }
 
 #[derive(Copy, Clone)]
-pub struct PrefixCache {
-    pub(crate) prefix_cache: heed::Database<OwnedType<PrefixKey>, CowSlice<Highlight>>,
+pub struct PrefixDocumentsCache {
+    pub(crate) prefix_documents_cache: heed::Database<OwnedType<PrefixKey>, CowSlice<Highlight>>,
 }
 
-impl PrefixCache {
+impl PrefixDocumentsCache {
     pub fn put_prefix_document(
         self,
         writer: &mut heed::RwTxn<MainT>,
@@ -41,11 +41,11 @@ impl PrefixCache {
         highlights: &[Highlight],
     ) -> ZResult<()> {
         let key = PrefixKey::new(prefix, index as u64, docid.0);
-        self.prefix_cache.put(writer, &key, highlights)
+        self.prefix_documents_cache.put(writer, &key, highlights)
     }
 
     pub fn clear(self, writer: &mut heed::RwTxn<MainT>) -> ZResult<()> {
-        self.prefix_cache.clear(writer)
+        self.prefix_documents_cache.clear(writer)
     }
 
     pub fn prefix_documents<'txn>(
@@ -55,7 +55,7 @@ impl PrefixCache {
     ) -> ZResult<PrefixDocumentsIter<'txn>> {
         let start = PrefixKey::new(prefix, 0, 0);
         let end = PrefixKey::new(prefix, u64::max_value(), u64::max_value());
-        let iter = self.prefix_cache.range(reader, &(start..=end))?;
+        let iter = self.prefix_documents_cache.range(reader, &(start..=end))?;
         Ok(PrefixDocumentsIter { iter })
     }
 }
diff --git a/meilisearch-core/src/update/documents_addition.rs b/meilisearch-core/src/update/documents_addition.rs
index eadb56392..d6f3ac00a 100644
--- a/meilisearch-core/src/update/documents_addition.rs
+++ b/meilisearch-core/src/update/documents_addition.rs
@@ -109,7 +109,7 @@ pub fn apply_documents_addition<'a, 'b>(
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     postings_lists_store: store::PostingsLists,
     docs_words_store: store::DocsWords,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
     addition: Vec<HashMap<String, serde_json::Value>>,
 ) -> MResult<()> {
     let mut documents_additions = HashMap::new();
@@ -176,7 +176,7 @@ pub fn apply_documents_addition<'a, 'b>(
         main_store,
         postings_lists_store,
         docs_words_store,
-        prefix_cache_store,
+        prefix_documents_cache_store,
         &ranked_map,
         number_of_inserted_documents,
         indexer,
@@ -190,7 +190,7 @@ pub fn apply_documents_partial_addition<'a, 'b>(
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     postings_lists_store: store::PostingsLists,
     docs_words_store: store::DocsWords,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
     addition: Vec<HashMap<String, serde_json::Value>>,
 ) -> MResult<()> {
     let mut documents_additions = HashMap::new();
@@ -274,7 +274,7 @@ pub fn apply_documents_partial_addition<'a, 'b>(
         main_store,
         postings_lists_store,
         docs_words_store,
-        prefix_cache_store,
+        prefix_documents_cache_store,
         &ranked_map,
         number_of_inserted_documents,
         indexer,
@@ -288,7 +288,7 @@ pub fn reindex_all_documents(
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     postings_lists_store: store::PostingsLists,
     docs_words_store: store::DocsWords,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
 ) -> MResult<()> {
     let schema = match main_store.schema(writer)? {
         Some(schema) => schema,
@@ -350,7 +350,7 @@ pub fn reindex_all_documents(
             main_store,
             postings_lists_store,
             docs_words_store,
-            prefix_cache_store,
+            prefix_documents_cache_store,
             &ranked_map,
             number_of_inserted_documents,
             indexer,
@@ -365,7 +365,7 @@ pub fn write_documents_addition_index(
     main_store: store::Main,
     postings_lists_store: store::PostingsLists,
     docs_words_store: store::DocsWords,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
     ranked_map: &RankedMap,
     number_of_inserted_documents: usize,
     indexer: RawIndexer,
diff --git a/meilisearch-core/src/update/mod.rs b/meilisearch-core/src/update/mod.rs
index 6136282cf..1c18ef5d8 100644
--- a/meilisearch-core/src/update/mod.rs
+++ b/meilisearch-core/src/update/mod.rs
@@ -281,7 +281,7 @@ pub fn update_task<'a, 'b>(
                 index.documents_fields_counts,
                 index.postings_lists,
                 index.docs_words,
-                index.prefix_cache,
+                index.prefix_documents_cache,
             );
 
             (update_type, result, start.elapsed())
@@ -308,7 +308,7 @@ pub fn update_task<'a, 'b>(
                 index.documents_fields_counts,
                 index.postings_lists,
                 index.docs_words,
-                index.prefix_cache,
+                index.prefix_documents_cache,
                 documents,
             );
 
@@ -339,7 +339,7 @@ pub fn update_task<'a, 'b>(
                             index.postings_lists,
                             index.documents_fields_counts,
                             index.synonyms,
-                            index.prefix_cache,
+                            index.prefix_documents_cache,
                         ).unwrap();
 
                         let mut prefix = [0; 4];
@@ -347,7 +347,7 @@ pub fn update_task<'a, 'b>(
                         prefix[..len].copy_from_slice(&s.as_bytes()[..len]);
 
                         for (i, document) in documents.into_iter().enumerate() {
-                            index.prefix_cache.put_prefix_document(
+                            index.prefix_documents_cache.put_prefix_document(
                                 writer,
                                 prefix,
                                 i,
@@ -381,7 +381,7 @@ pub fn update_task<'a, 'b>(
                 index.documents_fields_counts,
                 index.postings_lists,
                 index.docs_words,
-                index.prefix_cache,
+                index.prefix_documents_cache,
                 documents,
             );
 
@@ -443,7 +443,7 @@ pub fn update_task<'a, 'b>(
                 index.documents_fields_counts,
                 index.postings_lists,
                 index.docs_words,
-                index.prefix_cache,
+                index.prefix_documents_cache,
                 stop_words,
             );
 
diff --git a/meilisearch-core/src/update/schema_update.rs b/meilisearch-core/src/update/schema_update.rs
index 9c1633b62..bde93346d 100644
--- a/meilisearch-core/src/update/schema_update.rs
+++ b/meilisearch-core/src/update/schema_update.rs
@@ -13,7 +13,7 @@ pub fn apply_schema_update(
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     postings_lists_store: store::PostingsLists,
     docs_words_store: store::DocsWords,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
 ) -> MResult<()> {
     use UnsupportedOperation::{
         CanOnlyIntroduceNewSchemaAttributesAtEnd, CannotRemoveSchemaAttribute,
@@ -56,7 +56,7 @@ pub fn apply_schema_update(
             documents_fields_counts_store,
             postings_lists_store,
             docs_words_store,
-            prefix_cache_store,
+            prefix_documents_cache_store,
         )?
     }
 
diff --git a/meilisearch-core/src/update/stop_words_deletion.rs b/meilisearch-core/src/update/stop_words_deletion.rs
index f0ff58a2f..7a92d0392 100644
--- a/meilisearch-core/src/update/stop_words_deletion.rs
+++ b/meilisearch-core/src/update/stop_words_deletion.rs
@@ -68,7 +68,7 @@ pub fn apply_stop_words_deletion(
     documents_fields_counts_store: store::DocumentsFieldsCounts,
     postings_lists_store: store::PostingsLists,
     docs_words_store: store::DocsWords,
-    prefix_cache_store: store::PrefixCache,
+    prefix_documents_cache_store: store::PrefixDocumentsCache,
     deletion: BTreeSet<String>,
 ) -> MResult<()> {
     let mut stop_words_builder = SetBuilder::memory();
@@ -111,7 +111,7 @@ pub fn apply_stop_words_deletion(
                 documents_fields_counts_store,
                 postings_lists_store,
                 docs_words_store,
-                prefix_cache_store,
+                prefix_documents_cache_store,
             )?;
         }
     }