diff --git a/ChangeLog b/ChangeLog
index 501a4723b3..e3df4f7370 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Feb 17 12:53:51 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (get_arg_pat): no second parameter.
+
 Tue Feb 17 12:50:57 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* string.c (rb_str_shared_replace): no need for
diff --git a/string.c b/string.c
index ddaa6922b3..c5d13dae32 100644
--- a/string.c
+++ b/string.c
@@ -1993,7 +1993,7 @@ regcomp_failed(str)
 }
 
 static VALUE
-get_arg_pat(pat, quote)
+get_arg_pat(pat)
      VALUE pat;
 {
     return rb_rescue2(get_pat_quoted, pat,