diff --git a/ChangeLog b/ChangeLog
index 3058808ded..effbe47a84 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Oct 19 11:13:55 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/driver.rb: remove unexpected `output'.
+	  (commit miss)
+
 Fri Oct 19 10:24:03 2012  Koichi Sasada  <ko1@atdot.net>
 
 	* vm_insnhelper.c (vm_search_method): remove needless local variable.
diff --git a/benchmark/driver.rb b/benchmark/driver.rb
index f93ccb3eb1..66bbe6b35f 100644
--- a/benchmark/driver.rb
+++ b/benchmark/driver.rb
@@ -238,7 +238,6 @@ class BenchmarkDriver
   def measure executable, file
     cmd = "#{executable} #{@ruby_arg} #{file}"
 
-    output cmd
     m = Benchmark.measure{
       `#{cmd}`
     }