diff --git a/cloud-init.spec b/cloud-init.spec
index 024a6857e9ff104a0431d0eb5124f47ff19ab47b..04f9614b2b356e28a599624869cea8c97e59ff01 100644
--- a/cloud-init.spec
+++ b/cloud-init.spec
@@ -1,6 +1,6 @@
 Name: cloud-init
 Version: 21.4
-Release: 12
+Release: 13
 Summary: the defacto multi-distribution package that handles early initialization of a cloud instance.
 License: ASL 2.0 or GPLv3
 URL: http://launchpad.net/cloud-init
@@ -21,6 +21,7 @@ Patch9: backport-netplan-define-features.NETPLAN_CONFIG_ROOT_READ_ONL.patch
 Patch10: backport-Fix-the-distro.osfamily-output-problem.patch
 Patch11: backport-netplan-keep-custom-strict-perms-when-50-cloud-init.patch
 Patch12: backport-Do-not-change-permissions-of-netrules-target.patch
+Patch13: fix-a-small-unitest-error.patch
 
 Patch9000: Fix-the-error-level-logs-displayed-for-the-cloud-init-local-service.patch
 
@@ -132,6 +133,9 @@ fi
 %exclude /usr/share/doc/*
 
 %changelog
+* Sun Apr 23 2023 shixuantong <shixuantong1@huawei.com> - 21.4-13
+- Fix a unitest error
+
 * Thu Apr 13 2023 shixuantong <shixuantong1@huawei.com> - 21.4-12
 - Don't change permissions of netrules target
 
diff --git a/fix-a-small-unitest-error.patch b/fix-a-small-unitest-error.patch
new file mode 100644
index 0000000000000000000000000000000000000000..eded44cd676063c2002eeb238b3d21bd43c93895
--- /dev/null
+++ b/fix-a-small-unitest-error.patch
@@ -0,0 +1,26 @@
+From ad6a8ee26ae553e9d7a9aff4e348867d32eadcf0 Mon Sep 17 00:00:00 2001
+From: yuelg <yuelg@chinaunicom.cn>
+Date: Thu, 20 Apr 2023 18:16:21 +0800
+Subject: [PATCH 1/1] fix a small unitest error
+
+Signed-off-by: yuelg <yuelg@chinaunicom.cn>
+---
+ tests/unittests/test_templating.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tests/unittests/test_templating.py b/tests/unittests/test_templating.py
+index cba0983..116a647 100644
+--- a/tests/unittests/test_templating.py
++++ b/tests/unittests/test_templating.py
+@@ -58,7 +58,7 @@ class TestTemplates(test_helpers.CiTestCase):
+         blob = "blahblah $blah"
+         (template_type, _renderer, _contents) = templater.detect_template(blob)
+         self.assertIn("cheetah", template_type)
+-        self.assertEqual(blob, contents)
++        self.assertEqual(blob, _contents)
+ 
+         blob = '##template:something-new'
+         self.assertRaises(ValueError, templater.detect_template, blob)
+-- 
+2.33.0
+