diff --git a/ChangeLog b/ChangeLog
index f09750baee..218733799d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Jun 21 17:56:25 2013  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/gc/gcbench.rb: fix summary of benchmark result notaton.
+
 Fri Jun 21 16:38:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
 
 	* ext/openssl/ossl_x509attr.c: change OSSL_X509ATTR_IS_SINGLE and
diff --git a/benchmark/gc/gcbench.rb b/benchmark/gc/gcbench.rb
index 12ab042ec3..722a69f0ed 100644
--- a/benchmark/gc/gcbench.rb
+++ b/benchmark/gc/gcbench.rb
@@ -17,11 +17,14 @@ GC::Profiler.report if RUBY_VERSION >= '2.0.0' # before 1.9.3, report() may run
 GC::Profiler.disable
 pp GC.stat
 
+desc = "#{RUBY_VERSION}#{RUBY_PATCHLEVEL >= 0 ? "p#{RUBY_PATCHLEVEL}" : "dev"}"
+name = File.basename(script, '.rb')
+
 puts
 puts script
 puts Benchmark::CAPTION
 puts tms
 puts "GC total time (sec): #{gc_time}"
 puts
-puts "Summary #{RUBY_DESCRIPTION}\t#{tms.real}\t#{gc_time}\t#{GC.count}"
+puts "Summary of #{name} on #{desc}\t#{tms.real}\t#{gc_time}\t#{GC.count}"
 puts "         (real time in sec, GC time in sec, GC count)"