diff --git a/.github/workflows/lean_action_ci.yml b/.github/workflows/lean_action_ci.yml
index ec930b8ca..1053d8a53 100644
--- a/.github/workflows/lean_action_ci.yml
+++ b/.github/workflows/lean_action_ci.yml
@@ -14,6 +14,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Set TEST_ARGS manually
+        run: |
+          echo "TEST_ARGS='--wfail --iofail'" >> $GITHUB_ENV
+        shell: bash
       - uses: leanprover/lean-action@v1
         with:
           build-args: "--wfail --iofail"