diff --git a/pkgs/racket-doc/scribblings/reference/fasl.scrbl b/pkgs/racket-doc/scribblings/reference/fasl.scrbl
index 106d810d88..2b6d2a2c48 100644
--- a/pkgs/racket-doc/scribblings/reference/fasl.scrbl
+++ b/pkgs/racket-doc/scribblings/reference/fasl.scrbl
@@ -1,5 +1,5 @@
 #lang scribble/doc
-@(require "mz.rkt" (for-label racket/fasl))
+@(require "mz.rkt" (for-label racket/fasl racket/serialize))
 
 @(define fasl-eval (make-base-eval))
 @examples[#:hidden #:eval fasl-eval (require racket/fasl)]