diff --git a/tests/ui/traits/next-solver/self-referential-closure-sig-4.rs b/tests/ui/traits/next-solver/generalize/alias-with-bound-vars-incomplete-generalization.rs
similarity index 75%
rename from tests/ui/traits/next-solver/self-referential-closure-sig-4.rs
rename to tests/ui/traits/next-solver/generalize/alias-with-bound-vars-incomplete-generalization.rs
index fb6297869356c..bf2276e4967b0 100644
--- a/tests/ui/traits/next-solver/self-referential-closure-sig-4.rs
+++ b/tests/ui/traits/next-solver/generalize/alias-with-bound-vars-incomplete-generalization.rs
@@ -2,7 +2,9 @@
 //@[next] compile-flags: -Znext-solver
 //@ check-pass
 
-// Regression test for the fourth variant of trait-system-refactor-initiative#191
+// Regression test for the fourth variant of trait-system-refactor-initiative#191.
+// We previously didn't normalize `<() as Trait<T>>::Assoc<'a>` before generalizing
+// here, resulting in an error.
 
 trait Trait<T> {
     type Assoc<'a>;