diff --git a/.github/workflows/docker-backend.yml b/.github/workflows/docker-backend.yml
index eb6f585..00abc5b 100644
--- a/.github/workflows/docker-backend.yml
+++ b/.github/workflows/docker-backend.yml
@@ -50,8 +50,7 @@ jobs:
         uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
         with:
           context: .
-          build-args:
-            EXTRA_DEPS: gcsfs
+          build-args: EXTRA_DEPS=gcsfs
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}