diff --git a/src/database/rooms.rs b/src/database/rooms.rs
index 9b22fd9..b05785d 100644
--- a/src/database/rooms.rs
+++ b/src/database/rooms.rs
@@ -970,7 +970,7 @@ impl Rooms {
                     .get("users")
                     .and_then(|users| users.as_sequence())
                     .map_or_else(
-                        || Vec::new(),
+                        Vec::new,
                         |users| {
                             users
                                 .iter()