diff --git a/httpd.spec b/httpd.spec
index 523220f990faa16685521f2219035b230bc06298..0c3c0c910997e224071d6ade13f1730b96641901 100644
--- a/httpd.spec
+++ b/httpd.spec
@@ -8,7 +8,7 @@
 Name:             httpd
 Summary:          Apache HTTP Server
 Version:          2.4.51
-Release:          19
+Release:          20
 License:          ASL 2.0
 URL:              https://httpd.apache.org/
 Source0:          https://archive.apache.org/dist/httpd/httpd-%{version}.tar.bz2
@@ -68,7 +68,7 @@ Patch14:          backport-layout_add_openEuler.patch
 Patch15:          backport-httpd-2.4.43-gettid.patch
 Patch16:          backport-httpd-2.4.43-r1861793+.patch
 Patch17:          backport-httpd-2.4.48-r1828172+.patch
-Patch18:          backport-httpd-2.4.46-htcacheclean-dont-break.patch 
+Patch18:          backport-httpd-2.4.46-htcacheclean-dont-break.patch
 Patch19:          backport-CVE-2022-22719.patch
 Patch20:          backport-CVE-2022-22720.patch
 Patch21:          backport-CVE-2022-22721.patch
@@ -222,6 +222,10 @@ sed 's/@MPM@/%{mpm}/' < $RPM_SOURCE_DIR/httpd.service.xml \
 xmlto man ./httpd.service.xml
 
 %build
+%ifarch loongarch64 sw_64
+%_update_config_guess
+%_update_config_sub
+%endif
 rm -rf srclib/{apr,apr-util,pcre}
 
 autoheader && autoconf || exit 1
@@ -538,6 +542,12 @@ exit $rv
 %{_rpmconfigdir}/macros.d/macros.httpd
 
 %changelog
+* Fri Nov 10 2023 chengyechun <chengyechun1@huawei.com> - 2.4.51-20
+- Type:bugfix
+- ID:
+- SUG:NA
+- DESC:add sw_64 support,optimize sw build patch,add loongarch64 support
+
 * Fri Nov 03 2023 chengyechun <chengyechun1@huawei.com> - 2.4.51-19
 - Type:CVE
 - ID:CVE-2023-45802