diff --git a/roles/upload-docker-image/defaults/main.yaml b/roles/upload-docker-image/defaults/main.yaml
index 9739eb171..d702500de 100644
--- a/roles/upload-docker-image/defaults/main.yaml
+++ b/roles/upload-docker-image/defaults/main.yaml
@@ -1 +1,2 @@
 zuul_work_dir: "{{ zuul.project.src_dir }}"
+docker_dockerfile: "Dockerfile"