diff --git a/meilisearch/src/routes/indexes/facet_search.rs b/meilisearch/src/routes/indexes/facet_search.rs
index 5dd2ac039..5a5c04f99 100644
--- a/meilisearch/src/routes/indexes/facet_search.rs
+++ b/meilisearch/src/routes/indexes/facet_search.rs
@@ -22,7 +22,9 @@ pub fn configure(cfg: &mut web::ServiceConfig) {
     cfg.service(web::resource("").route(web::post().to(search)));
 }
 
-// TODO improve the error messages
+/// # Important
+///
+/// Intentionally don't use `deny_unknown_fields` to ignore search parameters sent by user
 #[derive(Debug, Clone, Default, PartialEq, deserr::Deserr)]
 #[deserr(error = DeserrJsonError, rename_all = camelCase)]
 pub struct FacetSearchQuery {