diff --git a/test/ruby/test_object.rb b/test/ruby/test_object.rb
index 599b2ae140..7b3defa011 100644
--- a/test/ruby/test_object.rb
+++ b/test/ruby/test_object.rb
@@ -31,7 +31,7 @@ class TestObject < Test::Unit::TestCase
   def test_clone
     a = Object.new
     def a.b; 2 end
-    
+
     a.freeze
     c = a.clone
     assert_equal(true, c.frozen?)