diff --git a/ChangeLog b/ChangeLog
index c5106fced3..53aca09d10 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Dec 24 23:32:24 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* transcode_data_japanese.c (select_iso_2022_mode): '\e' is not valid.
+
 Mon Dec 24 23:13:09 2007  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
 	* lib/rdoc/diagram.rb (RDoc::Diagram#initialize): use fileuitls
diff --git a/transcode_data_japanese.c b/transcode_data_japanese.c
index 223d1586e3..860b824221 100644
--- a/transcode_data_japanese.c
+++ b/transcode_data_japanese.c
@@ -23754,7 +23754,7 @@ static int
 select_iso_2022_mode(char **out_pos, int new_mode)
 {
     char *out_p = *out_pos;
-    *out_p++ = '\e';
+    *out_p++ = '\x1b';
     switch (new_mode>>8)
     {
     case ISO_2022_GZD4: