diff --git a/0021-multipath.conf.5-fix-the-description-of-prio_args-fo.patch b/0021-multipath.conf.5-fix-the-description-of-prio_args-fo.patch
new file mode 100644
index 0000000000000000000000000000000000000000..07f15869f84b6bacbb47d86444e40542e1b5b206
--- /dev/null
+++ b/0021-multipath.conf.5-fix-the-description-of-prio_args-fo.patch
@@ -0,0 +1,34 @@
+From 66e536da13199472a3d5293db561adc8677e6793 Mon Sep 17 00:00:00 2001
+From: kouwenqi <kouwenqi@kylinos.cn>
+Date: Tue, 4 Jun 2024 11:07:25 +0800
+Subject: [PATCH] multipath.conf.5: fix the description of prio_args for
+ path_latency prio
+
+This aligns the description of prio_args for path_latency prio and
+the actual code.
+---
+ multipath/multipath.conf.5 | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5
+index 284282c..d4fd534 100644
+--- a/multipath/multipath.conf.5
++++ b/multipath/multipath.conf.5
+@@ -399,11 +399,11 @@ Needs a value of the form "io_num=\fI<20>\fR base_num=\fI<10>\fR"
+ .TP 8
+ .I io_num
+ The number of read IOs sent to the current path continuously, used to calculate the average path latency.
+-Valid Values: Integer, [2, 200].
++Valid Values: Integer, [20, 200].
+ .TP
+ .I base_num
+-The base number value of logarithmic scale, used to partition different priority ranks. Valid Values: Integer,
+-[2, 10]. And Max average latency value is 100s, min average latency value is 1us.
++The base number value of logarithmic scale, used to partition different priority ranks. Valid Values:
++Double-precision floating-point, [1.1, 10]. And Max average latency value is 100s, min average latency value is 1us.
+ For example: If base_num=10, the paths will be grouped in priority groups with path latency <=1us, (1us, 10us],
+ (10us, 100us], (100us, 1ms], (1ms, 10ms], (10ms, 100ms], (100ms, 1s], (1s, 10s], (10s, 100s], >100s.
+ .RE
+-- 
+2.43.0
+
diff --git a/multipath-tools.spec b/multipath-tools.spec
index d484c16a2335d272e492053cbfef4f3a09570c6b..dc83c3db59ea4e943dae819dae6b9e6cd8462ce5 100644
--- a/multipath-tools.spec
+++ b/multipath-tools.spec
@@ -1,7 +1,7 @@
 #needsrootforbuild
 Name:    multipath-tools
 Version: 0.9.5
-Release: 3
+Release: 4
 Summary: Tools to manage multipath devices with the device-mapper
 License: GPL-2.0-or-later and LGPL-2.0-only
 URL:     http://christophe.varoqui.free.fr/
@@ -29,6 +29,7 @@ Patch17: 0017-libmultipath-io_err_stat-don-t-free-aio-memory-befor.patch
 Patch18: 0018-libmultipath-io_err_stat-call-io_destroy-inside-free.patch
 Patch19: 0019-libmultipath-sysfs_set_scsi_tmo-do-nothing-for-ACT_D.patch
 Patch20: 0020-multipath.conf.5-fix-documentation-for-find_multipat.patch
+Patch21: 0021-multipath.conf.5-fix-the-description-of-prio_args-fo.patch
 
 BuildRequires:    multipath-tools, libcmocka, libcmocka-devel
 BuildRequires:    gcc, libaio-devel, userspace-rcu-devel, device-mapper-devel >= 1.02.89
@@ -182,6 +183,9 @@ fi
 
 
 %changelog
+* Fri Jul 12 2024 kouwenqi <kouwenqi@kylinos.cn> - 0.9.5-4
+- multipath.conf.5: fix the description of prio_args for path_latency prio
+
 * Tue Jul 2 2024 kouwenqi <kouwenqi@kylinos.cn> - 0.9.5-3
 - multipath.conf.5: fix documentation for find_multipaths