diff --git a/ChangeLog b/ChangeLog
index 949c5a3d3f..9175833e22 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Jul  9 17:43:57 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* test/test_tracer.rb: catch up recent rubygems changes.
+
 Tue Jul  9 16:58:30 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* ext/{dl,fiddle}/win32/lib/win32/registry.rb: hope that the final
diff --git a/test/test_tracer.rb b/test/test_tracer.rb
index 918fed0446..12f37ac44c 100644
--- a/test/test_tracer.rb
+++ b/test/test_tracer.rb
@@ -8,12 +8,10 @@ class TestTracer < Test::Unit::TestCase
   def test_tracer_with_option_r
     assert_in_out_err(%w[-rtracer -e 1]) do |(*lines),|
       case lines.size
-      when 2
-        assert_match(%r{rubygems/core_ext/kernel_require\.rb:\d+:Kernel:<:}, lines[0])
       when 1
         # do nothing
       else
-        flunk "unexpected output from `ruby -rtracer -e 1`: #{lines.inspect}"
+        assert_match(%r{rubygems/core_ext/kernel_require\.rb:\d+:Kernel:-:}, lines[0])
       end
       assert_equal "#0:-e:1::-: 1", lines.last
     end