diff --git a/pkgs/net-pkgs/net-doc/net/scribblings/http-client.scrbl b/pkgs/net-pkgs/net-doc/net/scribblings/http-client.scrbl
index ec088d119e..9b8d2bccd8 100644
--- a/pkgs/net-pkgs/net-doc/net/scribblings/http-client.scrbl
+++ b/pkgs/net-pkgs/net-doc/net/scribblings/http-client.scrbl
@@ -155,7 +155,7 @@ response, which is why there is no @racket[#:closed?] argument like
 
 Contract for a procedure that accepts a procedure of one
 argument, which is a string or byte string:
-@racket[(-> (-> (or/c bytes? string?) any/c) any/c)].
+@racket[(-> (-> (or/c bytes? string?) void?) any)].
 
 }
 
diff --git a/racket/collects/net/http-client.rkt b/racket/collects/net/http-client.rkt
index eabb98a91b..06246a096d 100644
--- a/racket/collects/net/http-client.rkt
+++ b/racket/collects/net/http-client.rkt
@@ -299,7 +299,7 @@
                        #:close? #t))
 
 (define data-procedure/c
-  (-> (-> (or/c bytes? string?) any/c) any/c))
+  (-> (-> (or/c bytes? string?) void?) any))
 
 (provide
  data-procedure/c