diff --git a/benches/task_local.rs b/benches/task_local.rs
index 3b6c85902..e58413205 100644
--- a/benches/task_local.rs
+++ b/benches/task_local.rs
@@ -13,8 +13,10 @@ fn get(b: &mut Bencher) {
     }
 
     let mut sum = 0;
-    task::block_on(async {
-        b.iter(|| VAL.with(|v| sum += v));
+    b.iter(|| {
+        task::block_on(async move {
+            VAL.with(|v| sum += v);
+        })
     });
     black_box(sum);
 }