diff --git a/crates/backend/src/group.rs b/crates/backend/src/group.rs
index d26693a..fb5a542 100644
--- a/crates/backend/src/group.rs
+++ b/crates/backend/src/group.rs
@@ -28,6 +28,7 @@ pub struct BackendGroup {
 
 impl BackendGroup {
     /// Create a new backend group.
+    #[must_use]
     pub fn new(
         name: String,
         backends: Vec<Arc<dyn Backend>>,