diff --git a/trousers-0.3.14-fix-indent-obj_policy.patch b/trousers-0.3.14-fix-indent-obj_policy.patch
new file mode 100644
index 0000000000000000000000000000000000000000..af53ee46a9e1ed7f05e9508be9ba37defde78b2f
--- /dev/null
+++ b/trousers-0.3.14-fix-indent-obj_policy.patch
@@ -0,0 +1,12 @@
+diff -ur trousers-0.3.14/src/tspi/obj_policy.c trousers-0.3.14-new/src/tspi/obj_policy.c
+--- trousers-0.3.14/src/tspi/obj_policy.c	2014-07-23 12:42:44.000000000 -0700
++++ trousers-0.3.14-new/src/tspi/obj_policy.c	2019-05-27 13:29:56.720899059 -0700
+@@ -984,7 +984,7 @@
+ 					      policy->popupString,
+ 					      policy->Secret)))
+ 			goto done;
+-			policy->SecretSet = TRUE;
++		policy->SecretSet = TRUE;
+ 	}	
+ 	memcpy(secret, policy->Secret, TPM_SHA1_160_HASH_LEN);
+ 	*mode = policy->SecretMode;
diff --git a/trousers-0.3.14-fix-indent-tspi_key.patch b/trousers-0.3.14-fix-indent-tspi_key.patch
new file mode 100644
index 0000000000000000000000000000000000000000..9278fc80cd46595d98a123cf1da00cfcc27b43ac
--- /dev/null
+++ b/trousers-0.3.14-fix-indent-tspi_key.patch
@@ -0,0 +1,18 @@
+diff -ur trousers-0.3.14/src/tspi/tspi_key.c trousers-0.3.14-new/src/tspi/tspi_key.c
+--- trousers-0.3.14/src/tspi/tspi_key.c	2014-07-23 12:42:45.000000000 -0700
++++ trousers-0.3.14-new/src/tspi/tspi_key.c	2019-05-27 13:44:42.366735438 -0700
+@@ -370,10 +370,10 @@
+ 	/* get the key to be wrapped's private key */
+ 	if ((result = obj_rsakey_get_priv_blob(hKey, &keyPrivBlobLen, &keyPrivBlob)))
+ 		goto done;
+-    /* verify if its under the maximum size, according to the
+-     * TPM_STORE_ASYMKEY specification */
+-    if (keyPrivBlobLen > TPM_STORE_PRIVKEY_LEN)
+-        return TSPERR(TSS_E_ENC_INVALID_LENGTH);
++	/* verify if its under the maximum size, according to the
++	 * TPM_STORE_ASYMKEY specification */
++	if (keyPrivBlobLen > TPM_STORE_PRIVKEY_LEN)
++		return TSPERR(TSS_E_ENC_INVALID_LENGTH);
+ 
+ 	/* get the key to be wrapped's blob */
+ 	if ((result = obj_rsakey_get_blob(hKey, &keyBlobLen, &keyBlob)))
diff --git a/trousers.spec b/trousers.spec
index 5d91c0ca4c3ed3d9ae8f5eb3834da6d4a53addfb..7aff916529bc2344e2ee1da5e92e342c3fa51447 100644
--- a/trousers.spec
+++ b/trousers.spec
@@ -1,16 +1,18 @@
-%define anolis_release 3
+%define anolis_release		4
 
 Name:    trousers
-Version: 0.3.15
+Version:	0.3.15
 Release: %{anolis_release}%{?dist}
 Summary: The open-source TCG Software Stack
 License: BSD
 Url:     http://trousers.sourceforge.net
-Source0: http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
-Source1: tcsd.service
+Source0:	http://downloads.sourceforge.net/trousers/trousers-0.3.15.tar.gz
+Source1:	tcsd.service
 
 Patch1: trousers-0.3.14-noinline.patch
 Patch2: trousers-0.3.14-unlock-in-err-path.patch
+Patch3:	trousers-0.3.14-fix-indent-tspi_key.patch
+Patch4:	trousers-0.3.14-fix-indent-obj_policy.patch
 
 BuildRequires: autoconf automake make
 BuildRequires: libtool openssl-devel gettext-devel systemd
@@ -127,6 +129,8 @@ exit 0
 %doc README ChangeLog
 
 %changelog
+* Mon Sep 29 2025 wenyuzifang <lzx02244079@alibaba-inc.com> - 0.3.15-4
+- Fix indentation to ensure code clarity and prevent maintenance errors.
 * Wed Apr 12 2023 Shawn Wang <shawnwang@linux.alibaba.com> - 0.3.15-3
 - Optimize the spec file