diff --git a/fix-left-shift.patch b/fix-left-shift.patch
new file mode 100644
index 0000000..e1c991b
--- /dev/null
+++ b/fix-left-shift.patch
@@ -0,0 +1,25 @@
+From fb72f9f311d396be2fb5c3ac48c05abce2d42f83 Mon Sep 17 00:00:00 2001
+From: caodongxia <315816521@qq.com>
+Date: Tue, 14 Dec 2021 20:37:56 +0800
+Subject: [PATCH] fix left shift
+
+---
+ src/opusfile.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/opusfile.c b/src/opusfile.c
+index 6deaeb0..3fdc0ac 100644
+--- a/src/opusfile.c
++++ b/src/opusfile.c
+@@ -1021,7 +1021,7 @@ static opus_int64 op_rescale64(opus_int64 _x,opus_int64 _from,opus_int64 _to){
+       _x-=_from-_x;
+       frac|=1;
+     }
+-    else _x<<=1;
++    else _x = (opus_int64)((opus_uint64)(_x) << 1);
+   }
+   ret=0;
+   for(i=0;i<63;i++){
+-- 
+2.27.0
+
diff --git a/opusfile.spec b/opusfile.spec
index f67090e..5fd18cc 100644
--- a/opusfile.spec
+++ b/opusfile.spec
@@ -1,12 +1,13 @@
 Name:          opusfile
 Version:       0.11
-Release:       4
+Release:       5
 Summary:       A high-level API provides seeking, decode, and playback of Opus streams
 License:       BSD
 URL:           http://www.opus-codec.org/
 Source0:       http://downloads.xiph.org/releases/opus/%{name}-%{version}.tar.gz
 Patch0000:     0001-fix-MemorySanitizer-use-of-uninitialized-value.patch
 Patch0001:     Fix-short-circuit-test-when-seeking-in-short-files.patch
+Patch0002:     fix-left-shift.patch
 
 BuildRequires: libogg-devel openssl-devel opus-devel
 
@@ -51,6 +52,9 @@ Development package for opusfile package.
 %{_libdir}/{libopusfile.so,libopusurl.so}
 
 %changelog
+* Tue Dec 14 2021 caodongxia <caodongxia@huawei.com> -  0.11-5
+- Fix left shift
+
 * Tue Dec 14 2021 chenchen <chen_aka_jan@163.com> -  0.11-4
 - Fix short-circuit test when seeking in short files