diff --git a/pkgs/racket-test/tests/racket/prompt-sfs.rkt b/pkgs/racket-test/tests/racket/prompt-sfs.rkt
index 18abbeff76..41549471b6 100644
--- a/pkgs/racket-test/tests/racket/prompt-sfs.rkt
+++ b/pkgs/racket-test/tests/racket/prompt-sfs.rkt
@@ -1,4 +1,4 @@
-#lang racket
+#lang racket/base
 (require racket/system)
 
 #|