diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index 16287c23a1..84b65857f7 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -132,6 +132,7 @@ class Pathname
   private :default_stat
 
   def cp dst
+    opoo "Pathname#cp is deprecated, use FileUtils.cp"
     if file?
       FileUtils.cp to_s, dst
     else
@@ -194,6 +195,7 @@ class Pathname
   end
 
   def chmod_R perms
+    opoo "Pathname#chmod_R is deprecated, use FileUtils.chmod_R"
     require 'fileutils'
     FileUtils.chmod_R perms, to_s
   end
diff --git a/Library/Homebrew/test/test_pathname.rb b/Library/Homebrew/test/test_pathname.rb
index 3bfda1a17d..1c0fdfa41f 100644
--- a/Library/Homebrew/test/test_pathname.rb
+++ b/Library/Homebrew/test/test_pathname.rb
@@ -46,12 +46,6 @@ class PathnameExtensionTests < Test::Unit::TestCase
     assert_raises(RuntimeError) { @file.write('CONTENT') }
   end
 
-  def test_chmod_R
-    perms = 0777
-    FileUtils.expects(:chmod_R).with(perms, @dir.to_s)
-    @dir.chmod_R(perms)
-  end
-
   def test_atomic_write
     touch @file
     @file.atomic_write('CONTENT')
@@ -71,19 +65,6 @@ class PathnameExtensionTests < Test::Unit::TestCase
     assert_equal sentinel.stat.mode, @file.stat.mode
   end
 
-  def test_cp
-    touch @file
-    mkdir_p @dir
-
-    @file.cp(@dir)
-    assert @file.file?
-    assert((@dir+@file.basename).file?)
-
-    @dir.cp(@dst)
-    assert @dir.directory?
-    assert((@dst+@dir.basename).directory?)
-  end
-
   def test_ensure_writable
     touch @file
     chmod 0555, @file