diff --git a/tests/async_fd/net.rs b/tests/async_fd/net.rs
index 3edba3c..de4e572 100644
--- a/tests/async_fd/net.rs
+++ b/tests/async_fd/net.rs
@@ -381,8 +381,13 @@ fn connect() {
     client.write_all(DATA2).expect("failed to write");
     buf.clear();
     buf.reserve(DATA2.len() + 1);
-    let buf = waker.block_on(stream.read(buf)).expect("failed to read");
+    let mut buf = waker.block_on(stream.read(buf)).expect("failed to read");
     assert_eq!(buf, DATA2);
+
+    // Dropping the stream should close it.
+    drop(stream);
+    let n = client.read(&mut buf).expect("failed to read");
+    assert_eq!(n, 0);
 }
 
 #[test]