1 files changed, 2 insertions, 2 deletions
diff --git a/lib/pp.rb b/lib/pp.rb
index cda282448b..56d726dc7d 100644
--- a/lib/pp.rb
+++ b/lib/pp.rb
@@ -396,7 +396,7 @@ class Range
   end
 end
 
-class File
+class File < IO
   class Stat
     def pretty_print(q)
       require 'etc.so'
@@ -503,7 +503,7 @@ class MatchData
   end
 end
 
-class Object
+class Object < BasicObject
   include PP::ObjectMixin
 end