diff --git a/crates/milli/src/index.rs b/crates/milli/src/index.rs
index 9936e9b0c..e9e63a853 100644
--- a/crates/milli/src/index.rs
+++ b/crates/milli/src/index.rs
@@ -2021,6 +2021,8 @@ pub struct PrefixSettings {
     pub compute_prefixes: PrefixSearch,
 }
 
+/// This is unfortunately a duplication of the struct in <meilisearch/src/search/mod.rs>.
+/// The reason why it is duplicated is because milli cannot depend on meilisearch. It would be cyclic imports.
 #[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Deserr, ToSchema, Serialize, Deserialize)]
 #[deserr(rename_all = camelCase)]
 #[serde(rename_all = "camelCase")]