diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0bb14c479..5f5b93686 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -62,6 +62,7 @@ jobs:
         sudo make macosx_bundle
         ARTIFACT=(RawTherapee*.zip)
         echo "=== artifact: ${ARTIFACT}"
+        # defining environment variables for next step as per https://github.com/actions/starter-workflows/issues/68
         echo "::set-env name=ARTIFACT_PATH::${GITHUB_WORKSPACE}/build/${ARTIFACT}"
         echo "::set-env name=ARTIFACT_FILE::${ARTIFACT}"
     - uses: actions/upload-artifact@v1