diff --git a/433edd0eea934e25f6e97aaf912ebed191fa41d1.patch b/433edd0eea934e25f6e97aaf912ebed191fa41d1.patch
new file mode 100644
index 0000000000000000000000000000000000000000..7c321a30315a4ab9413495f343b9159197394eb5
--- /dev/null
+++ b/433edd0eea934e25f6e97aaf912ebed191fa41d1.patch
@@ -0,0 +1,13 @@
+diff --git a/thirdparty/libz/gzguts.h b/thirdparty/libz/gzguts.h
+index d87659d03..fb9198550 100644
+--- a/thirdparty/libz/gzguts.h
++++ b/thirdparty/libz/gzguts.h
+@@ -3,6 +3,8 @@
+  * For conditions of distribution and use, see copyright notice in zlib.h
+  */
+ 
++#include <unistd.h>
++
+ #ifdef _LARGEFILE64_SOURCE
+ #  ifndef _LARGEFILE_SOURCE
+ #    define _LARGEFILE_SOURCE 1
diff --git a/openjpeg2.spec b/openjpeg2.spec
index e4f0659b73c65905a1966d52fcfe88112813f68a..cc44d99b2c5e5edb1246ac0dc444b8900d2a298d 100644
--- a/openjpeg2.spec
+++ b/openjpeg2.spec
@@ -1,6 +1,6 @@
 Name:           openjpeg2
 Version:        2.3.1
-Release:        3
+Release:        4
 Summary:        C-Library for JPEG 2000
 License:        BSD and MIT
 URL:            https://github.com/uclouvain/openjpeg
@@ -12,6 +12,7 @@ Patch1:         openjpeg2_opj2.patch
 Patch6000:	CVE-2016-10505.patch
 Patch6001:	CVE-2016-7445.patch
 Patch6002:      CVE-2020-15389.patch
+Patch6003: 433edd0eea934e25f6e97aaf912ebed191fa41d1.patch
 
 BuildRequires:  cmake gcc-c++ make zlib-devel libpng-devel libtiff-devel lcms2-devel doxygen
 
@@ -87,6 +88,9 @@ mv %{buildroot}%{_mandir}/man1/opj_dump.1 %{buildroot}%{_mandir}/man1/opj2_dump.
 %{_mandir}/man3/*.3*
 
 %changelog
+* 20201231185849762215 patch-tracking 2.3.1-4
+- append patch file of upstream repository from <433edd0eea934e25f6e97aaf912ebed191fa41d1> to <433edd0eea934e25f6e97aaf912ebed191fa41d1>
+
 * Sat Jul 25 2020 zhangnaru <zhangnaru@huawei.com> -2.3.1-3
 - fix CVE-2020-15389 
 
@@ -94,4 +98,4 @@ mv %{buildroot}%{_mandir}/man1/opj_dump.1 %{buildroot}%{_mandir}/man1/opj2_dump.
 - fix CVE-2016-10505 and CVE-2016-7445
 
 * Thu Sep 19 2019 openEuler Buildteam <buildteam@openeuler.org> - 2.3.1-1
-- Package init
+- Package init
\ No newline at end of file