diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 286b265..60afa04 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -17,7 +17,7 @@ deploy:
     image: $CI_REGISTRY/group/project/docker:20.10.16
     services:
         - name: $CI_REGISTRY/group/project/docker:20.10.16-dind
-        alias: docker
+        - alias: docker
     script:
         - docker build -t $CI_REGISTRY_IMAGE$CI_COMMIT_SHORT_SHA .
         - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY