diff --git a/ChangeLog b/ChangeLog
index 8bf7aef457..e828198b41 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,6 @@
-Tue May  8 03:54:20 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Tue May  8 03:54:34 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit.rb (MiniTest#run_test): show the running test in $0.
 
 	* lib/test/unit.rb (Test::Unit::StatusLineOutput): new class to output
 	  in status line.
diff --git a/lib/test/unit.rb b/lib/test/unit.rb
index 3a0836c7dd..90b957512e 100644
--- a/lib/test/unit.rb
+++ b/lib/test/unit.rb
@@ -786,4 +786,15 @@ module Test
   end
 end
 
+class MiniTest::Unit::TestCase
+  undef run_test
+  def run_test(name)
+    progname, $0 = $0, "#{$0}: #{self.class}##{name}"
+    self.__send__(name)
+  ensure
+    $@[-caller.size, 1] = [] if $@
+    $0 = progname
+  end
+end
+
 Test::Unit::Runner.autorun