diff --git a/rust.spec b/rust.spec
index 9740b50f4949c2ac36ffaf5599d20646f1c701e1..af7ad1f5e6cc0d6a9ca1136f05e08d40bca30def 100644
--- a/rust.spec
+++ b/rust.spec
@@ -22,7 +22,7 @@
 
 Name:                rust
 Version:             1.82.0
-Release:             6
+Release:             7
 Summary:             The Rust Programming Language
 License:             Apache-2.0 OR MIT
 URL:                 https://www.rust-lang.org
@@ -376,7 +376,11 @@ test -r "%{profiler}"
   --enable-verbose-tests \
   %{?codegen_units_std} \
   --release-channel=stable
-%{python} ./x.py build -j "$ncpus" --stage 2
+%ifarch loongarch64
+	%{python} ./x.py build -j "$((($ncpus + 3) / 4))" --stage 2
+%else
+	%{python} ./x.py build -j "$ncpus" --stage 2
+%endif
 %{python} ./x.py doc --stage 2
 
 %install
@@ -545,6 +549,9 @@ export %{rust_env}
 %{_mandir}/man1/cargo*.1*
 
 %changelog
+* Fri Dec 20 2024 Wenlong Zhang <zhangwenlong@loongson.cn> - 1.82.0-7
+- fix the error out of memory for loongarch64
+
 * Sun Dec 08 2024 misaka00251 <liuxin@iscas.ac.cn> - 1.82.0-6
 - Fix rpm macros