diff --git a/tests/pass/panic/catch_panic.rs b/tests/pass/panic/catch_panic.rs
index 3089044065..5d57df4e52 100644
--- a/tests/pass/panic/catch_panic.rs
+++ b/tests/pass/panic/catch_panic.rs
@@ -69,7 +69,7 @@ fn main() {
     });
 
     test(Some("align_offset: align is not a power-of-two"), |_old_val| {
-        (0usize as *const u8).align_offset(3);
+        let _ = (0usize as *const u8).align_offset(3);
         loop {}
     });