diff --git a/.drone.star b/.drone.star
index dde95f3..e39d86b 100644
--- a/.drone.star
+++ b/.drone.star
@@ -37,7 +37,7 @@ def wait(delay, name):
   }
 def build(name):
   return {
-        "name": "build-{name}",
+        "name": "build-{name}".format(name=name),
         "image": "docker:dind",
         "volumes": [
           {
@@ -49,9 +49,9 @@ def build(name):
           "local-docker-registry",
         ]),
         "commands": [
-          "cd {name}",
-          "docker build . -t $${{LOCAL_DOCKER_REGISTRY}}{name}",
-          "docker push $${{LOCAL_DOCKER_REGISTRY}}{name}",
+          "cd {name}".format(name=name),
+          "docker build . -t $${{LOCAL_DOCKER_REGISTRY}}{name}".format(name=name),
+          "docker push $${{LOCAL_DOCKER_REGISTRY}}{name}".format(name=name),
         ],
       }
 def steps(name, dependsOn):