diff --git a/.github/workflows/codspeed.yml b/.github/workflows/codspeed.yml
index 8a265631c34..bbe1e6bc3ff 100644
--- a/.github/workflows/codspeed.yml
+++ b/.github/workflows/codspeed.yml
@@ -34,9 +34,9 @@ jobs:
         run: |
           uv venv
           uv pip install packaging requests
-          output=$(uv run .github/scripts/check_diff.py ${{ steps.files.outputs.all }})
-          echo "Script output: $output"
-          echo "$output" >> $GITHUB_OUTPUT
+          uv run .github/scripts/check_diff.py ${{ steps.files.outputs.all }} >> $GITHUB_OUTPUT
+        outputs:
+          codspeed: ${{ steps.set-matrix.outputs.codspeed }}
   codspeed:
     name: Run benchmarks
     needs: [ prepare_matrix ]