diff --git a/.github/workflows/python-app-mysql8.yml b/.github/workflows/python-app-mysql8.yml
index 9231aeeb6..c316b9d81 100644
--- a/.github/workflows/python-app-mysql8.yml
+++ b/.github/workflows/python-app-mysql8.yml
@@ -31,7 +31,7 @@ jobs:
         sudo bash scripts/install_dev.sh
     - name: Install MySQL80
       run: |
-        MAKEJN=-j12
+        export MAKEJN=-j12
         cd /www/server/mdserver-web/plugins/mysql && sudo bash install.sh install 8.0
     - name: Start DEBUG
       run: |