diff --git a/nss.spec b/nss.spec
index 839a4161aed39ce6d12414395c4fb9307f35b016..b991eef9737503d4b8c0e091864dae4607c0a1f4 100644
--- a/nss.spec
+++ b/nss.spec
@@ -25,7 +25,7 @@
 Summary:          Network Security Services
 Name:             nss
 Version:          %{nss_version}
-Release:          10
+Release:          11
 License:          MPLv2.0
 URL:              http://www.mozilla.org/projects/security/pki/nss/
 Provides:         nss-system-init
@@ -468,6 +468,7 @@ update-crypto-policies &>/dev/null||:
 %{_includedir}/nss3/nssbaset.h
 %{_includedir}/nss3/nssck*.h
 %{_includedir}/nss3/templates/nssck.api
+%exclude %{_includedir}/nss3/cmac.h
 
 %files util
 %{!?_licensedir:%global license %%doc}
@@ -574,6 +575,9 @@ update-crypto-policies &>/dev/null||:
 %doc %{_mandir}/man*
 
 %changelog
+* Fri Sep 26 2025 hugel <gengqihu2@h-partners.com> - 3.72.0-11
+- Delete the duplicate file cmac.h in nss-devel
+
 * Mon May 19 2025 jinlun <jinlun@huawei.com> - 3.72.0-10
 - fix CVE-2022-22747