diff --git a/tests/by-util/test_cat.rs b/tests/by-util/test_cat.rs
index a721adf4643..1f228226d7d 100644
--- a/tests/by-util/test_cat.rs
+++ b/tests/by-util/test_cat.rs
@@ -524,7 +524,7 @@ fn test_dev_full_show_all() {
 /// fallback inside `write_fast`, the other splice succeeds, in effect
 /// without additional flush output gets reversed.
 #[test]
-#[cfg(any(target_os = "linux"))]
+#[cfg(target_os = "linux")]
 fn test_write_fast_fallthrough_uses_flush() {
     const PROC_INIT_CMDLINE: &str = "/proc/1/cmdline";