diff --git a/.github/workflows/build-centos7.yaml b/.github/workflows/build-centos7.yaml
index b723d6c3a13..cd135c4b17c 100644
--- a/.github/workflows/build-centos7.yaml
+++ b/.github/workflows/build-centos7.yaml
@@ -11,6 +11,7 @@ jobs:
     container:
       image: centos:7
       volumes:
+        - /opt:/opt
         - /usr/share/dotnet:/host/usr/share/dotnet
         - /usr/local/lib/android:/host/usr/local/lib/android
 
@@ -76,9 +77,9 @@ jobs:
 
       - name: Create tarball
         # WARNING each xz thread consumes nearly 1 GB of memory
-        run: XZOPT=-T0 tar -cJvf rv-gnu-toolchain-centos7.txz -C /opt/ riscv/
+        run: XZOPT=-T0 tar -cJvf /opt/rv-gnu-toolchain-centos7.txz -C /opt/ riscv/
 
       - uses: actions/upload-artifact@v3
         with:
           name: toolchain-for-centos7
-          path: rv-gnu-toolchain-centos7.txz
+          path: /opt/rv-gnu-toolchain-centos7.txz