diff --git a/tests/winch.rs b/tests/winch.rs
index c441d86..b816858 100644
--- a/tests/winch.rs
+++ b/tests/winch.rs
@@ -21,6 +21,7 @@ fn test_winch_std() {
     assert_eq!(output.next().unwrap(), "WINCH\r\n");
 
     pty.write_all(b"\n").unwrap();
+    drop(pts);
     let status = child.wait().unwrap();
     assert_eq!(status.code().unwrap(), 0);
 }
@@ -49,6 +50,7 @@ async fn test_winch_async() {
     assert_eq!(output.next().await.unwrap(), "WINCH\r\n");
 
     pty_w.write_all(b"\n").await.unwrap();
+    drop(pts);
     let status = child.wait().await.unwrap();
     assert_eq!(status.code().unwrap(), 0);
 }