diff --git a/collects/scribblings/foreign/derived.scrbl b/collects/scribblings/foreign/derived.scrbl
index 829d99d733..3f3f3f44e1 100644
--- a/collects/scribblings/foreign/derived.scrbl
+++ b/collects/scribblings/foreign/derived.scrbl
@@ -221,7 +221,7 @@ just aliases for byte-string bindings: @scheme[make-u8vector],
                (defform* [#,(datum->syntax
                              #'_vec
                              (cons #'_vec
-                                   (let loop ([l '(mode type maybe-len)]
+                                   (let loop ([l '(mode maybe-len)]
                                               [col (+ (syntax-column #'_vec)
                                                       (syntax-span #'_vec)
                                                       1)]