diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
index 80198ba39f9be..16febf05b60e9 100644
--- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs
+++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs
@@ -102,7 +102,6 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
             if trait_clause.def_id() == goal.predicate.def_id()
                 && trait_clause.polarity() == goal.predicate.polarity
             {
-                // FIXME: Constness
                 ecx.probe_misc_candidate("assumption").enter(|ecx| {
                     let assumption_trait_pred = ecx.instantiate_binder_with_infer(trait_clause);
                     ecx.eq(