diff --git a/nss.spec b/nss.spec
index 7f8cc9bea89dc86baa28ab0ee9e515e1a77ce9fc..23e2c95d6fa0f3c49e02752dba6e23a322f0c8d5 100644
--- a/nss.spec
+++ b/nss.spec
@@ -26,7 +26,7 @@
 Summary:          Network Security Services
 Name:             nss
 Version:          %{nss_version}
-Release:          7
+Release:          8
 License:          MPLv2.0
 URL:              http://www.mozilla.org/projects/security/pki/nss/
 Provides:         nss-system-init
@@ -466,6 +466,7 @@ 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}
@@ -572,6 +573,9 @@ update-crypto-policies &>/dev/null||:
 %doc %{_mandir}/man*
 
 %changelog
+* Wed Sep 24 2025 hugel <gengqihu2@h-partners.com> - 3.94.0-8
+- Delete the duplicate file cmac.h in nss-devel
+
 * Fri Oct 11 2024 fuanan <fuanan3@h-partners.com> - 3.94.0-7
 - Add the crypto-policies-scripts Requires