diff --git a/ChangeLog b/ChangeLog
index ebac32ef32..147753af3c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Sep  8 16:08:22 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* benchmark/bm_app_lc_fizzbuzz.rb: should skip output on benchmark.
+
 Mon Sep  8 16:04:02 2014  Koichi Sasada  <ko1@atdot.net>
 
 	* benchmark/bm_app_lc_fizzbuzz.rb: `answer.to_a' does not return
diff --git a/benchmark/bm_app_lc_fizzbuzz.rb b/benchmark/bm_app_lc_fizzbuzz.rb
index 2c9a04987e..f09574bbeb 100644
--- a/benchmark/bm_app_lc_fizzbuzz.rb
+++ b/benchmark/bm_app_lc_fizzbuzz.rb
@@ -49,4 +49,4 @@ answer = to_array(solution).map do |p|
 end
 
 answer_ary = answer.to_a
-puts answer_ary
+# puts answer_ary