diff --git a/service_impl/src/lib.rs b/service_impl/src/lib.rs
index a54c56b..93e0c32 100644
--- a/service_impl/src/lib.rs
+++ b/service_impl/src/lib.rs
@@ -100,7 +100,7 @@ where
             .permission_dao
             .all_users()
             .await?
-            .into_iter()
+            .iter()
             .map(service::User::from)
             .collect())
     }