diff --git a/firefox.spec b/firefox.spec
index 431b6904829adc6d6cd76ffe49ce20ce25c9ad34..3732f347509da644c16a7baeefe201e0e4dc701e 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -45,7 +45,7 @@
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        128.3.0
-Release:        2
+Release:        3
 URL:            https://www.mozilla.org/firefox/
 License:        MPL-1.1 or GPL-2.0-or-later or LGPL-2.0-or-later
 Source0:        https://ftp.mozilla.org/pub/firefox/releases/%{version}esr/source/firefox-%{version}esr.source.tar.xz
@@ -539,6 +539,7 @@ mkdir -p my_rust_vendor
 cd my_rust_vendor
 %{__tar} xf %{SOURCE2}
 mkdir -p .cargo
+%ifnarch loongarch64
 cat > .cargo/config <<EOL
 [source.crates-io]
 replace-with = "vendored-sources"
@@ -546,6 +547,7 @@ replace-with = "vendored-sources"
 [source.vendored-sources]
 directory = "`pwd`"
 EOL
+%endif
 
 %ifarch aarch64
 #export RUSTFLAGS="-Cdebuginfo=0 -Clinker=/opt/rh/gcc-toolset-12/root/usr/bin/gcc"
@@ -930,6 +932,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 %endif
 
 %changelog
+* Tue Oct 22 2024 Wenlong Zhang <zhangwenlong@loongson.cn> - 128.3.0-3
+- fix build error for loongarch64
+
 * Wed Oct 09 2024 wangkai <13474090681@163.com> - 128.3.0-2
 - Fix CVE-2024-9680