diff --git a/Library/Homebrew/unittest.rb b/Library/Homebrew/unittest.rb
index adbfd4afb7..2ffb874ba4 100755
--- a/Library/Homebrew/unittest.rb
+++ b/Library/Homebrew/unittest.rb
@@ -5,7 +5,7 @@ require 'formula'
 require 'keg'
 require 'utils'
 
-# these are defined in env.rb usually, but we don't want to break our actual
+# these are defined in bin/brew, but we don't want to break our actual
 # homebrew tree, and we do want to test everything :)
 HOMEBREW_PREFIX=Pathname.new '/tmp/testbrew/prefix'
 HOMEBREW_CACHE=HOMEBREW_PREFIX.parent+"cache"