diff --git a/implementations/racket/preserves/preserves-schema/reader.rkt b/implementations/racket/preserves/preserves-schema/reader.rkt
index 7b35440..aa1fde5 100644
--- a/implementations/racket/preserves/preserves-schema/reader.rkt
+++ b/implementations/racket/preserves/preserves-schema/reader.rkt
@@ -213,5 +213,6 @@
 (module+ main
   (require preserves)
   (require "methods.rkt")
-  (define expected (car (file->preserves "../../../../schema/schema.bin")))
-  (equal? expected (->preserve (file->schema "../../../../schema/schema.prs"))))
+  (define expected (car (time (file->preserves "../../../../schema/schema.bin"))))
+  (define actual (time (file->schema "../../../../schema/schema.prs")))
+  (equal? expected (time (->preserve actual))))