diff --git a/tests/run-pass/time.rs b/tests/run-pass/time.rs
index 264fa9de0352..aa02ac15388e 100644
--- a/tests/run-pass/time.rs
+++ b/tests/run-pass/time.rs
@@ -25,7 +25,7 @@ fn main() {
     let now2 = Instant::now();
     assert!(now2 > now1);
 
-    #[cfg(target_os = "linux")] // TODO: macOS does not support Instant subtraction
+    #[cfg(not(target_os = "macos"))] // TODO: macOS does not support Instant subtraction
     {
         let diff = now2.duration_since(now1);
         assert_eq!(now1 + diff, now2);