diff --git a/meilisearch/src/routes/metrics.rs b/meilisearch/src/routes/metrics.rs
index a06791b9e..1d3fb834e 100644
--- a/meilisearch/src/routes/metrics.rs
+++ b/meilisearch/src/routes/metrics.rs
@@ -22,6 +22,7 @@ pub async fn get_metrics(
     let response = create_all_stats(
         (*index_scheduler).clone(),
         (*auth_controller).clone(),
+        // we don't use the filters contained in the `ActionPolicy` because the metrics must have the right to access all the indexes.
         &AuthFilter::default(),
     )?;
 
diff --git a/meilisearch/tests/auth/authorization.rs b/meilisearch/tests/auth/authorization.rs
index 2c22a61b3..e92f41bcf 100644
--- a/meilisearch/tests/auth/authorization.rs
+++ b/meilisearch/tests/auth/authorization.rs
@@ -10,7 +10,7 @@ use crate::common::Server;
 
 pub static AUTHORIZATIONS: Lazy<HashMap<(&'static str, &'static str), HashSet<&'static str>>> =
     Lazy::new(|| {
-        let mut authorizations = hashmap! {
+        let authorizations = hashmap! {
             ("POST",    "/multi-search") =>                                    hashset!{"search", "*"},
             ("POST",    "/indexes/products/search") =>                         hashset!{"search", "*"},
             ("GET",     "/indexes/products/search") =>                         hashset!{"search", "*"},