diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 4866afc..fd66130 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -38,6 +38,7 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
+          file: extras/Dockerfile
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}