diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 64044f5d..1bc8665d 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -59,7 +59,7 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          build-args:
+          build-args: |
             - VER=${{ env.NBGV_SimpleVersion }}
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}