diff --git a/libpinyin-0.6.x-head.patch b/libpinyin-0.6.x-head.patch
index e69de29..de80a78 100644
--- a/libpinyin-0.6.x-head.patch
+++ b/libpinyin-0.6.x-head.patch
@@ -0,0 +1,35 @@
+From ad094960b7844a026e65c4d2aafb674783694a08 Mon Sep 17 00:00:00 2001
+From: Peng Wu <alexepico@gmail.com>
+Date: Mon, 13 Feb 2012 13:26:12 +0800
+Subject: [PATCH] improves full pinyin parser
+
+---
+ src/storage/pinyin_parser2.cpp |    5 ++++-
+ 1 files changed, 4 insertions(+), 1 deletions(-)
+
+diff --git a/src/storage/pinyin_parser2.cpp b/src/storage/pinyin_parser2.cpp
+index 80a525b..defc9fe 100644
+--- a/src/storage/pinyin_parser2.cpp
++++ b/src/storage/pinyin_parser2.cpp
+@@ -345,7 +345,9 @@ int FullPinyinParser2::parse (pinyin_option_t options, ChewingKeyVector & keys,
+ #endif
+ 
+         /* dynamic programming here. */
+-        for (size_t m = i; m < next_sep; ++m) {
++        /* for (size_t m = i; m < next_sep; ++m) */
++        {
++            size_t m = i;
+             curstep = &g_array_index(m_parse_steps, parse_value_t, m);
+             size_t try_len = std_lite::min
+                 (m + max_full_pinyin_length, next_sep);
+@@ -379,6 +381,7 @@ int FullPinyinParser2::parse (pinyin_option_t options, ChewingKeyVector & keys,
+                 if (value.m_parsed_len == nextstep->m_parsed_len &&
+                     value.m_num_keys < nextstep->m_num_keys)
+                     *nextstep = value;
++
+                 if (value.m_parsed_len == nextstep->m_parsed_len &&
+                     value.m_num_keys == nextstep->m_num_keys) {
+ 
+-- 
+1.7.7.6
+
diff --git a/libpinyin.spec b/libpinyin.spec
index e9bc5ca..3e5ad86 100644
--- a/libpinyin.spec
+++ b/libpinyin.spec
@@ -1,6 +1,6 @@
 Name:           libpinyin
 Version:        0.5.91
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Library to deal with pinyin
 
 License:        GPLv2+
@@ -83,6 +83,9 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 %{_mandir}/man1/*.1.*
 
 %changelog
+* Tue Feb 14 2012  Peng Wu <pwu@redhat.com> - 0.5.91-2
+- Improves full pinyin parser2
+
 * Mon Feb 13 2012  Peng Wu <pwu@redhat.com> - 0.5.91-1
 - Update to 0.5.91