diff --git a/racket/src/cs/c/embed-boot.rkt b/racket/src/cs/c/embed-boot.rkt
index ba52405558..137e70ecd2 100644
--- a/racket/src/cs/c/embed-boot.rkt
+++ b/racket/src/cs/c/embed-boot.rkt
@@ -49,7 +49,7 @@
          ;; zero byte stops a gzip-read sequence
          #"\0"
          ;; #!eof encoding stops(!) a fasl-read sequence
-         #"\26\4\fl"))
+         #"\26\2\f6"))
    (define data
      (bytes-append bstr1 terminator
                    bstr2 terminator