diff --git a/ChangeLog b/ChangeLog
index 254eb7d3b3..64aec3d4be 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Nov  2 16:41:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/zlib/zlib.c (Init_zlib): defines readbyte instead redefining
+	  readchar.
+
 Fri Oct 31 21:58:50 2008  Kouhei Sutou  <kou@cozmixng.org>
 
 	* lib/rss/converter.rb (RSS::Converter): use String#encode.
diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index f73d58a20d..30c3241674 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -3415,7 +3415,8 @@ rb_gzreader_readlines(int argc, VALUE *argv, VALUE obj)
  *   Zlib::OS_UNKNOWN
  *       The return values of Zlib::GzipFile#os_code method.
  */
-void Init_zlib()
+void
+Init_zlib()
 {
     VALUE mZlib, cZStream, cDeflate, cInflate;
 #if GZIP_SUPPORT
@@ -3571,7 +3572,7 @@ void Init_zlib()
     rb_define_method(cGzipReader, "getc", rb_gzreader_getc, 0);
     rb_define_method(cGzipReader, "getbyte", rb_gzreader_getbyte, 0);
     rb_define_method(cGzipReader, "readchar", rb_gzreader_readchar, 0);
-    rb_define_method(cGzipReader, "readchar", rb_gzreader_readbyte, 0);
+    rb_define_method(cGzipReader, "readbyte", rb_gzreader_readbyte, 0);
     rb_define_method(cGzipReader, "each_byte", rb_gzreader_each_byte, 0);
     rb_define_method(cGzipReader, "each_char", rb_gzreader_each_char, 0);
     rb_define_method(cGzipReader, "bytes", rb_gzreader_each_byte, 0);
diff --git a/version.h b/version.h
index 91e8eb0a2d..abf08e8615 100644
--- a/version.h
+++ b/version.h
@@ -1,15 +1,15 @@
 #define RUBY_VERSION "1.9.1"
-#define RUBY_RELEASE_DATE "2008-10-31"
+#define RUBY_RELEASE_DATE "2008-11-02"
 #define RUBY_VERSION_CODE 191
-#define RUBY_RELEASE_CODE 20081031
+#define RUBY_RELEASE_CODE 20081102
 #define RUBY_PATCHLEVEL 0
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9
 #define RUBY_VERSION_TEENY 1
 #define RUBY_RELEASE_YEAR 2008
-#define RUBY_RELEASE_MONTH 10
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 11
+#define RUBY_RELEASE_DAY 2
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];