diff --git a/pageserver/src/deletion_queue.rs b/pageserver/src/deletion_queue.rs
index 51a2cf9f48..3bdd5eba18 100644
--- a/pageserver/src/deletion_queue.rs
+++ b/pageserver/src/deletion_queue.rs
@@ -764,6 +764,7 @@ mod test {
 
     #[async_trait::async_trait]
     impl ControlPlaneGenerationsApi for MockControlPlane {
+        #[allow(clippy::diverging_sub_expression)] // False positive via async_trait
         async fn re_attach(&self) -> anyhow::Result<HashMap<TenantId, Generation>> {
             unimplemented!()
         }