diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 5e1147e..45a23d1 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -33,6 +33,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: ${{ github.workspace }}/src
+          file: ./DynDNSv2/Dockerfile
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}