diff --git a/ChangeLog b/ChangeLog
index aed4d75b2b..156db7953b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Jan 10 15:35:55 2013  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* tool/gen_dummy_probes.rb: remove comments in probes.d to fix the
+	  compilation error introduced by r38755.
+
 Thu Jan 10 11:15:04 2013  Kenta Murata  <mrkn@cookpad.com>
 
 	* numeric.c (do_coerce): speed optimization by using rb_check_funcall
diff --git a/tool/gen_dummy_probes.rb b/tool/gen_dummy_probes.rb
index e3d9232e52..91191f1918 100755
--- a/tool/gen_dummy_probes.rb
+++ b/tool/gen_dummy_probes.rb
@@ -4,6 +4,9 @@
 text = ARGF.read
 text.gsub!(/^(?!#)(.*)/){$1.upcase}
 
+# remove comments
+text.gsub!(%r'/\*.*?\*/'m, '')
+
 # remove the pragma declarations
 text.gsub!(/^#pragma.*$/, '')