diff --git a/test/sys/test_timerfd.rs b/test/sys/test_timerfd.rs
index 927cc70d1d..08e292106c 100644
--- a/test/sys/test_timerfd.rs
+++ b/test/sys/test_timerfd.rs
@@ -65,5 +65,5 @@ pub fn test_timerfd_unset() {
 
     timer.unset().unwrap();
 
-    assert!(timer.get().unwrap() == None);
+    assert!(timer.get().unwrap().is_none());
 }