1 files changed, 4 insertions, 5 deletions
diff --git a/src/test/compile-fail/issue-18389.rs b/src/test/compile-fail/issue-18389.rs
index 9065a5b9605..271c31bd375 100644
--- a/src/test/compile-fail/issue-18389.rs
+++ b/src/test/compile-fail/issue-18389.rs
@@ -12,18 +12,17 @@
 
 use std::any::Any;
 use std::any::TypeId;
+use std::marker::MarkerTrait;
 
-pub trait Pt {}
-pub trait Rt {}
+pub trait Pt : MarkerTrait {}
+pub trait Rt : MarkerTrait {}
 
 trait Private<P: Pt, R: Rt> {
     fn call(&self, p: P, r: R);
 }
-pub trait Public: Private<
+pub trait Public: Private< //~ ERROR private trait in exported type parameter bound
     <Self as Public>::P,
-//~^ ERROR illegal recursive type; insert an enum or struct in the cycle, if this is desired
     <Self as Public>::R
-//~^ ERROR unsupported cyclic reference between types/traits detected
 > {
     type P;
     type R;