diff --git a/.github/workflows/build-macos.yml b/.github/workflows/build-macos.yml
index 2e3a733c6..f97d32f53 100644
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -15,7 +15,8 @@ jobs:
       - name: Set env
         run: echo "TAG=${GITHUB_SHA::8}" >> $GITHUB_ENV
       - name: Downcase repo
-        run: echo "REPO_LOWER=${REPO,,}" >> $GITHUB_ENV
+        run: |
+          echo "REPO_LOWER=${REPO,,}" >> $GITHUB_ENV
         env:
           REPO: '${{ github.repository }}'
       - name: Checkout code