diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d2ce056e..1c0a5baa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -70,8 +70,7 @@ jobs:
     - name: "Install PAPI"
       run: |
         sudo apt-get install -y libpapi-dev
-      outputs:
-        FLAG_PAPI: "-fBenchPAPI"
+        echo FLAG_PAPI=-fBenchPAPI >> "$GITHUB_ENV"
       if: matrix.os == 'ubuntu-latest'
     # ----------------
     - name: Versions