diff --git a/collects/tests/eli-tester.rkt b/collects/tests/eli-tester.rkt
index 6bb114b90c..01fa685aba 100644
--- a/collects/tests/eli-tester.rkt
+++ b/collects/tests/eli-tester.rkt
@@ -216,7 +216,7 @@
  => '(#"1 test passed\n" #"2 tests passed\n")
  )
 
-;; RacUnit stuff
+;; RackUnit stuff
 ;; (examples that should fail modified to ones that shouldn't)
 #|
 
diff --git a/collects/tests/rackunit/all-rackunit-tests.rkt b/collects/tests/rackunit/all-rackunit-tests.rkt
index 2cb4b033b5..86fe329c28 100644
--- a/collects/tests/rackunit/all-rackunit-tests.rkt
+++ b/collects/tests/rackunit/all-rackunit-tests.rkt
@@ -22,7 +22,7 @@
 
 (define all-rackunit-tests
   (test-suite
-   "All RacUnit Tests"
+   "All RackUnit Tests"
    check-tests
    base-tests
    check-info-tests
diff --git a/collects/tests/rackunit/check-info-test.rkt b/collects/tests/rackunit/check-info-test.rkt
index a95ffe6ca4..15e3cbcc6e 100644
--- a/collects/tests/rackunit/check-info-test.rkt
+++ b/collects/tests/rackunit/check-info-test.rkt
@@ -2,22 +2,22 @@
 ;;; <check-util-test.rkt> ---- Tests for check-util
 ;;; Time-stamp: <2009-06-11 17:03:21 noel>
 ;;;
-;;; Copyright (C) 2003 by Noel Welsh. 
+;;; Copyright (C) 2003 by Noel Welsh.
 ;;;
-;;; This file is part of RacUnit.
+;;; This file is part of RackUnit.
 
-;;; RacUnit is free software; you can redistribute it and/or
+;;; RackUnit is free software; you can redistribute it and/or
 ;;; modify it under the terms of the GNU Lesser General Public
 ;;; License as published by the Free Software Foundation; either
 ;;; version 2.1 of the License, or (at your option) any later version.
 
-;;; RacUnitis distributed in the hope that it will be useful,
+;;; RackUnit is distributed in the hope that it will be useful,
 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 ;;; Lesser General Public License for more details.
 
 ;;; You should have received a copy of the GNU Lesser General Public
-;;; License along with RacUnit; if not, write to the Free Software
+;;; License along with RackUnit; if not, write to the Free Software
 ;;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
 ;;; Author: Noel Welsh <noelwelsh@yahoo.com>
diff --git a/collects/tests/typed-scheme/succeed/fixnum.rkt b/collects/tests/typed-scheme/succeed/fixnum.rkt
index 27e50ba56d..b345dd1b61 100644
--- a/collects/tests/typed-scheme/succeed/fixnum.rkt
+++ b/collects/tests/typed-scheme/succeed/fixnum.rkt
@@ -10,7 +10,7 @@
 ;; really badly wrong.
 
 (: check (All (a) ((a a -> Boolean) a a -> Boolean)))
-;; Simple check function as RacUnit doesn't work in Typed Scheme (yet)
+;; Simple check function as RackUnit doesn't work in Typed Scheme (yet)
 (define (check f a b)
   (if (f a b)
       #t
diff --git a/collects/tests/typed-scheme/succeed/flonum.rkt b/collects/tests/typed-scheme/succeed/flonum.rkt
index 0c709e64de..58139c7141 100644
--- a/collects/tests/typed-scheme/succeed/flonum.rkt
+++ b/collects/tests/typed-scheme/succeed/flonum.rkt
@@ -5,7 +5,7 @@
  scheme/unsafe/ops)
 
 (: check (All (a) ((a a -> Boolean) a a -> Boolean)))
-;; Simple check function as RacUnit doesn't work in Typed Scheme (yet)
+;; Simple check function as RackUnit doesn't work in Typed Scheme (yet)
 (define (check f a b)
   (if (f a b)
       #t
diff --git a/collects/tests/typed-scheme/succeed/flvector.rkt b/collects/tests/typed-scheme/succeed/flvector.rkt
index 255776edf9..4a359a43f7 100644
--- a/collects/tests/typed-scheme/succeed/flvector.rkt
+++ b/collects/tests/typed-scheme/succeed/flvector.rkt
@@ -11,7 +11,7 @@
 ;; really badly wrong.
 
 (: check (All (a) ((a a -> Boolean) a a -> Boolean)))
-;; Simple check function as RacUnit doesn't work in Typed Scheme (yet)
+;; Simple check function as RackUnit doesn't work in Typed Scheme (yet)
 (define (check f a b)
   (if (f a b)
       #t