diff --git a/tests/trait_impl.rs b/tests/trait_impl.rs
index 6e1a0dc..aa63896 100644
--- a/tests/trait_impl.rs
+++ b/tests/trait_impl.rs
@@ -5,6 +5,9 @@ extern crate static_assertions;
 
 assert_impl!(byte; u8, Send, Sync);
 
+#[cfg(feature = "failure")]
+assert_impl!(ptr; *const u8, Send, Sync);
+
 #[test]
 fn str_impl() {
     assert_impl!(str, Send, Sync, AsRef<[u8]>);