diff --git a/collects/drracket/acks.rkt b/collects/drracket/acks.rkt
index 2f8325b97c..d0c42a7cb6 100644
--- a/collects/drracket/acks.rkt
+++ b/collects/drracket/acks.rkt
@@ -46,6 +46,7 @@
    "Mike T. McHenry, "
    "Philippe Meunier, "
    "Scott Owens, "
+   "Jon Rafkind, "
    "Jamie Raymond, "
    "Grant Rettke, "
    "Paul Schlie, "
@@ -59,6 +60,7 @@
    "Neil Van Dyke, "
    "David Van Horn, "
    "Anton van Straaten, "
+   "Kevin Tew, "
    "Dale Vaillancourt, "
    "Dimitris Vyzovitis, "
    "Stephanie Weirich, "