diff --git a/lib/tempfile.rb b/lib/tempfile.rb
index 671ac7b83b..21742371aa 100644
--- a/lib/tempfile.rb
+++ b/lib/tempfile.rb
@@ -241,7 +241,7 @@ class Tempfile < DelegateClass(File)
     end
   end
 
-  class Remover
+  class Remover # :nodoc:
     def initialize(tmpfile)
       @pid = Process.pid
       @tmpfile = tmpfile