diff --git a/freeradius.spec b/freeradius.spec
index a9e8b10..d6e804e 100644
--- a/freeradius.spec
+++ b/freeradius.spec
@@ -4,7 +4,7 @@
 
 Name:           freeradius
 Version:        3.0.21
-Release:        2
+Release:        3
 Summary:        Remote Authentication Dial-In User Service
 
 License:        GPLv2+ and LGPLv2+
@@ -15,6 +15,7 @@ Source2:        freeradius-logrotate
 Source3:        freeradius-pam-conf
 Source4:        freeradius-tmpfiles.conf
 
+Patch0000:      remove-unused-arguement.patch
 # patch for backport CVE
 
 BuildRequires:  autoconf gdbm-devel openssl openssl-devel pam-devel zlib-devel net-snmp-devel
@@ -434,6 +435,9 @@ exit 0
 %attr(640,root,radiusd) %config(noreplace) /etc/raddb/mods-available/ldap
 
 %changelog
+* Fri Dec 25 2020 sunguoshuai <sunguoshuai@huawei.com> - 3.0.21-3
+- Remove unused arguement
+
 * Wed Nov 11 2020 zhangtao <zhangtao221@huawei.com> - 3.0.21-2
 - delete the unused file
 
diff --git a/remove-unused-arguement.patch b/remove-unused-arguement.patch
new file mode 100644
index 0000000..476420c
--- /dev/null
+++ b/remove-unused-arguement.patch
@@ -0,0 +1,24 @@
+From f06084a007fdcaad3bd68f29e243fa8edcf0b590 Mon Sep 17 00:00:00 2001
+From: "Alan T. DeKok" <aland@freeradius.org>
+Date: Thu, 24 Dec 2020 07:38:59 -0500
+Subject: [PATCH] remove unused argument.  Fixes #3817
+
+---
+ src/tests/map/map_unit.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/src/tests/map/map_unit.c b/src/tests/map/map_unit.c
+index af6d016..df906a5 100644
+--- a/src/tests/map/map_unit.c
++++ b/src/tests/map/map_unit.c
+@@ -81,7 +81,6 @@ static void NEVER_RETURNS usage(void)
+ 	fprintf(stderr, "usage: map_unit [OPTS] filename ...\n");
+ 	fprintf(stderr, "  -d <raddb>             Set user dictionary directory (defaults to " RADDBDIR ").\n");
+ 	fprintf(stderr, "  -D <dictdir>           Set main dictionary directory (defaults to " DICTDIR ").\n");
+-	fprintf(stderr, "  -O <output_dir>	  Set output directory\n");
+ 	fprintf(stderr, "  -x                     Debugging mode.\n");
+ 	fprintf(stderr, "  -M                     Show program version information.\n");
+ 
+-- 
+2.23.0
+