diff --git a/ChangeLog b/ChangeLog
index 4a0af6f168..4a2ec95c84 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Mar  9 14:55:00 2010  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* re.c (rb_reg_to_s): remove unused variable.
+
 Tue Mar  9 12:17:34 2010  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* tool/transcode-tblgen.rb (StrSet#parse, ActionMap#generate_node):
diff --git a/re.c b/re.c
index 6ec3646658..6230173c04 100644
--- a/re.c
+++ b/re.c
@@ -519,7 +519,6 @@ rb_reg_to_s(VALUE re)
 	    goto again;
 	}
 	if (*ptr == ':' && ptr[len-1] == ')') {
-	    int r;
 	    Regexp *rp;
 
 	    ++ptr;