1 files changed, 3 insertions, 3 deletions
diff --git a/test/rubygems/test_gem_doc_manager.rb b/test/rubygems/test_gem_doc_manager.rb
index f52f1f87f1..f7ab6416c0 100644
--- a/test/rubygems/test_gem_doc_manager.rb
+++ b/test/rubygems/test_gem_doc_manager.rb
@@ -17,21 +17,21 @@ class TestGemDocManager < Gem::TestCase
   end
 
   def test_uninstall_doc_unwritable
-    path = @spec.installation_path
+    path = @spec.base_dir
     orig_mode = File.stat(path).mode
 
     # File.chmod has no effect on MS Windows directories (it needs ACL).
     if win_platform?
       skip("test_uninstall_doc_unwritable skipped on MS Windows")
     else
-      File.chmod 0000, path
+      FileUtils.chmod 0000, path
     end
 
     assert_raises Gem::FilePermissionError do
       @manager.uninstall_doc
     end
   ensure
-    File.chmod orig_mode, path
+    FileUtils.chmod orig_mode, path
   end
 
 end