diff --git a/src/test/ui/issues/issue-30490.rs b/src/test/ui/issues/issue-30490.rs
index 68d9c4de4d1bf..4f0eeac8f71e8 100644
--- a/src/test/ui/issues/issue-30490.rs
+++ b/src/test/ui/issues/issue-30490.rs
@@ -10,7 +10,7 @@
 // This test checks to avoid that regression.
 
 #![cfg_attr(unix, feature(rustc_private))]
-#![cfg_attr(windows, allow(unused_imports))]
+#![cfg_attr(not(unix), allow(unused_imports))]
 
 #[cfg(unix)]
 extern crate libc;