diff --git a/src/test/ui/rfc1598-generic-associated-types/empty_generics.rs b/src/test/ui/rfc1598-generic-associated-types/empty_generics.rs
index a80875d28b3a..b12c075d1329 100644
--- a/src/test/ui/rfc1598-generic-associated-types/empty_generics.rs
+++ b/src/test/ui/rfc1598-generic-associated-types/empty_generics.rs
@@ -12,6 +12,7 @@
 
 trait Foo {
     type Bar<,>;
+    //~^ ERROR expected one of `>`, identifier, or lifetime, found `,`
 }
 
 fn main() {}