diff --git a/compiler/rustc_borrowck/src/renumber.rs b/compiler/rustc_borrowck/src/renumber.rs
index f5757bcaa1d..d382f264c37 100644
--- a/compiler/rustc_borrowck/src/renumber.rs
+++ b/compiler/rustc_borrowck/src/renumber.rs
@@ -26,9 +26,7 @@ pub fn renumber_mir<'tcx>(
     renumberer.visit_body(body);
 }
 
-// FIXME(@lcnr): A lot of these variants overlap and it seems like
-// this type is only used to decide which region should be used
-// as representative. This should be cleaned up.
+// The fields are used only for debugging output in `sccs_info`.
 #[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
 pub(crate) enum RegionCtxt {
     Location(Location),