diff --git a/.drone.yml b/.drone.yml
index ee3cef0..61b55aa 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -20,11 +20,11 @@ pipeline:
     image: docker:17.05
     environment:
       - DOCKER_HOST=tcp://127.0.0.1:2375
-      - TAG=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
+      - TAG=$DRONE_BRANCH-$DRONE_COMMIT_SHA:0:7
     commands:
       - docker login -u="$QUAY_USERNAME" -p="$QUAY_PASSWORD" quay.io
       - docker build -t image .
-      - docker tag image quay.io/ipedrazas/drone-helm:${TAG}
+      - docker tag image quay.io/ipedrazas/drone-helm:$TAG
       - docker push quay.io/ipedrazas/drone-helm
     secrets: ["quay_username", "quay_password"]
   
@@ -32,12 +32,12 @@ pipeline:
     image: docker:17.05
     environment:
       - DOCKER_HOST=tcp://127.0.0.1:2375
-      - TAG=${DRONE_BRANCH}-${DRONE_COMMIT_SHA:0:7}
+      - TAG=$DRONE_BRANCH-$DRONE_COMMIT_SHA:0:7
     commands:
       - docker login -u="$QUAY_USERNAME" -p="$QUAY_PASSWORD" quay.io
       - docker build -t image .
       - docker tag image quay.io/ipedrazas/drone-helm:latest
-      - docker tag image quay.io/ipedrazas/drone-helm:${TAG}
+      - docker tag image quay.io/ipedrazas/drone-helm:$TAG
       - docker push quay.io/ipedrazas/drone-helm
     when:
      event: [push]