diff --git a/collects/drracket/tool-lib.rkt b/collects/drracket/tool-lib.rkt
index cf121a8966..7f5ffcfbf8 100644
--- a/collects/drracket/tool-lib.rkt
+++ b/collects/drracket/tool-lib.rkt
@@ -906,7 +906,7 @@ all of the names in the tools library, for use defining keybindings
  
  (parameter-doc
   drracket:rep:after-expression
-  (parameter/c (or/c #f (-> void?)))
+  (parameter/c (or/c #f (-> any)))
   top-level-expression
   @{This parameter is used by @method[drracket:rep:text% evaluate-from-port].
     When it is a thunk, then DrRacket invokes the thunk on the user's thread