diff --git a/imperative/skeleton.rkt b/imperative/skeleton.rkt
index 95c81e9..6c37da3 100644
--- a/imperative/skeleton.rkt
+++ b/imperative/skeleton.rkt
@@ -262,7 +262,6 @@
       (define old-top (car popped-stack))
       (define new-top
         (cond [(non-object-struct? old-top) (vector-ref (struct->vector old-top) (+ index 1))]
-              ;; ^ TODO: evaluate unsafe-struct-ref
               [(list? old-top) (list-ref old-top index)]
               [(vector? old-top) (vector-ref old-top index)]))
       (define entry (hash-ref table