diff --git a/Fix_the_difference_at_the_macro_definition_using_clock_gettime_instead_of_gettimeofda.patch b/Fix_the_difference_at_the_macro_definition_using_clock_gettime_instead_of_gettimeofda.patch
new file mode 100644
index 0000000000000000000000000000000000000000..de4837fb6a50a71364bc20ad295a08de33b61825
--- /dev/null
+++ b/Fix_the_difference_at_the_macro_definition_using_clock_gettime_instead_of_gettimeofda.patch
@@ -0,0 +1,30 @@
+From 33bf90331b48c7378316c141e5e9acb2862dd0ac Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Witold=20Kr=C4=99cicki?= <wpk@isc.org>
+Date: Sun, 9 Dec 2018 00:41:21 +0100
+Subject: [PATCH] use clock_gettime() instead of gettimeofday() for isc_itme
+ functions
+
+---
+ lib/isc/unix/time.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/lib/isc/unix/time.c b/lib/isc/unix/time.c
+index 9828250..c2ae60e 100644
+--- a/lib/isc/unix/time.c
++++ b/lib/isc/unix/time.c
+@@ -38,7 +38,11 @@
+ #define NS_PER_MS	1000000		/*%< Nanoseconds per millisecond. */
+ #define US_PER_S	1000000		/*%< Microseconds per second. */
+ 
+-#define CLOCKSOURCE CLOCK_MONOTONIC
++#ifdef CLOCK_REALTIME_COARSE
++#define CLOCKSOURCE CLOCK_REALTIME_COARSE
++#else
++#define CLOCKSOURCE CLOCK_REALTIME
++#endif
+ 
+ /*%
+  *** Intervals
+-- 
+2.23.0
+
diff --git a/bind.spec b/bind.spec
index 5ee401d9821b5fd51ba00b494a7ecfe88ccbc110..fa9e04d9e3598f186427035cef78ef93579472ef 100644
--- a/bind.spec
+++ b/bind.spec
@@ -19,7 +19,7 @@ Name:           bind
 Summary:        Domain Name System (DNS) Server (named)
 License:        MPLv2.0
 Version:        9.11.21
-Release:        5
+Release:        6
 Epoch:          32
 Url:            https://www.isc.org/downloads/bind/
 Source0:        https://ftp.isc.org/isc/bind9/9.11.21/bind-%{version}.tar.gz
@@ -160,7 +160,7 @@ Patch190: Use-clock_gettime-instead-of-gettimeofday.patch
 Patch191: CVE-2020-8622.patch
 Patch192: CVE-2020-8623.patch
 Patch193: CVE-2020-8624.patch
-
+Patch194: Fix_the_difference_at_the_macro_definition_using_clock_gettime_instead_of_gettimeofda.patch
 # SDB patches
 Patch11: bind-9.3.2b2-sdbsrc.patch
 Patch12: bind-9.10-sdb.patch
@@ -363,6 +363,7 @@ are used for building ISC DHCP.
 %patch191 -p1
 %patch192 -p1
 %patch193 -p1
+%patch194 -p1
 
 mkdir lib/dns/tests/testdata/dstrandom
 cp -a %{SOURCE29} lib/dns/tests/testdata/dstrandom/random.data
@@ -1170,6 +1171,12 @@ rm -rf ${RPM_BUILD_ROOT}
 
 
 %changelog
+* Wed Dec 9 2020 hanzhijun <hanzhijun1@huawei.com> - 9.11.21-6
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:Fix the difference at the macro definition using clock gettime instead of gettimeofda
+
 * Tue Dec 15 2020 xihaochen <xihaochen@huawei.com> - 9.11.21-5
 - Type:requirement
 - ID:NA