diff --git a/src/librustc/traits/object_safety.rs b/src/librustc/traits/object_safety.rs
index 2ebe0d459fa..7cd0b26940d 100644
--- a/src/librustc/traits/object_safety.rs
+++ b/src/librustc/traits/object_safety.rs
@@ -46,7 +46,7 @@ impl ObjectSafetyViolation {
                 "the trait cannot require that `Self : Sized`".into(),
             ObjectSafetyViolation::SupertraitSelf =>
                 "the trait cannot use `Self` as a type parameter \
-                 in the supertrait listing".into(),
+                 in the supertraits or where-clauses".into(),
             ObjectSafetyViolation::Method(name, MethodViolationCode::StaticMethod) =>
                 format!("method `{}` has no receiver", name).into(),
             ObjectSafetyViolation::Method(name, MethodViolationCode::ReferencesSelf) =>