diff --git a/tests/integration/query_processing/test_btree.rs b/tests/integration/query_processing/test_btree.rs
index e98b762ed..7ad4ac828 100644
--- a/tests/integration/query_processing/test_btree.rs
+++ b/tests/integration/query_processing/test_btree.rs
@@ -428,10 +428,13 @@ impl BTreeGenerator<'_> {
 }
 
 fn write_at(io: &impl IO, file: Arc<dyn File>, offset: usize, data: &[u8]) {
-    let completion = Completion::new_write(|_| {});
-    let drop_fn = Rc::new(move |_| {});
     #[allow(clippy::arc_with_non_send_sync)]
-    let buffer = Arc::new(Buffer::new(Pin::new(data.to_vec()), drop_fn));
+    let buffer = Arc::new(Buffer::new(data.to_vec()));
+    let _buf = buffer.clone();
+    let completion = Completion::new_write(|_| {
+        // reference the buffer to keep alive for async io
+        let _buf = _buf.clone();
+    });
     let result = file.pwrite(offset, buffer, completion).unwrap();
     while !result.is_completed() {
         io.run_once().unwrap();