diff --git a/lib/vagrant/downloaders/file.rb b/lib/vagrant/downloaders/file.rb
index ca119d382..f63bc89c7 100644
--- a/lib/vagrant/downloaders/file.rb
+++ b/lib/vagrant/downloaders/file.rb
@@ -3,19 +3,9 @@ module Vagrant
     # "Downloads" a file to a temporary file. Basically, this downloader
     # simply does a file copy.
     class File < Base
-      BUFFERSIZE = 1048576 # 1 MB
-
       def download!(source_url, destination_file)
-        # For now we read the contents of one into a buffer
-        # and copy it into the other. In the future, we should do
-        # a system-level file copy (FileUtils.cp).
-        open(source_url) do |f|
-          loop do
-            break if f.eof?
-            destination_file.write(f.read(BUFFERSIZE))
-          end
-        end
+        FileUtils.cp(source_url, destination_file.path)
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/test/vagrant/downloaders/file_test.rb b/test/vagrant/downloaders/file_test.rb
index bcd52cc93..6e9f783f4 100644
--- a/test/vagrant/downloaders/file_test.rb
+++ b/test/vagrant/downloaders/file_test.rb
@@ -7,25 +7,10 @@ class FileDownloaderTest < Test::Unit::TestCase
   end
 
   context "downloading" do
-    setup do
-      @file = mock("file")
-      @file.stubs(:read)
-      @file.stubs(:eof?).returns(false)
-      @downloader.stubs(:open).yields(@file)
-    end
-
-    should "open with the given uri" do
-      @downloader.expects(:open).with(@uri).once
-      @downloader.download!(@uri, @tempfile)
-    end
-
-    should "buffer the read from the file and write to the tempfile" do
-      data = mock("data")
-      write_seq = sequence("write_seq")
-      @file.stubs(:eof?).returns(false).in_sequence(write_seq)
-      @file.expects(:read).returns(data).in_sequence(write_seq)
-      @tempfile.expects(:write).with(data).in_sequence(write_seq)
-      @file.stubs(:eof?).returns(true).in_sequence(write_seq)
+    should "cp the file" do
+      path = '/path'
+      @tempfile.expects(:path).returns(path)
+      FileUtils.expects(:cp).with(@uri, path)
       @downloader.download!(@uri, @tempfile)
     end
   end