diff --git a/.drone.yml b/.drone.yml
index fe1f702..ee7f005 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -18,11 +18,10 @@ steps:
         from_secret: DOCKER_USERNAME
       DOCKER_PASSWORD:
         from_secret: DOCKER_PASSWORD
-
     commands:
-      - docker build -t registry.fedy95.com/baseimage-yamllint:${DRONE_TAG} image -f image/Dockerfile
+      - docker build -t registry.fedy95.com/baseimage-yamllint:"$DRONE_TAG" image -f image/Dockerfile
       - docker login registry.fedy95.com -u"$DOCKER_USERNAME" -p"$DOCKER_PASSWORD"
-      - docker push registry.fedy95.com/baseimage-yamllint:${DRONE_TAG}
+      - docker push registry.fedy95.com/baseimage-yamllint:"$DRONE_TAG"
       - docker logout registry.fedy95.com
     when:
       event: tag