diff --git a/backends/metax_gpu/build.sh b/backends/metax_gpu/build.sh
index e52cddc6476..a40cac19e19 100755
--- a/backends/metax_gpu/build.sh
+++ b/backends/metax_gpu/build.sh
@@ -25,6 +25,7 @@ git submodule sync --recursive && git submodule update --init --recursive
 
 
 export http_proxy=https://172.17.0.1:1080 https_proxy=http://10.2.192.21:1080
+export
 pip install safetensors==0.6.2 -i https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple some-package
 # install paddle
 python -m pip install --pre paddlepaddle -i https://www.paddlepaddle.org.cn/packages/nightly/cpu/