diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 29e99a8caff38744c8ef12d8073637317451c2a8..ffa1d8fcab009f6d165720b3b082a03432595c0f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,8 +9,8 @@ build:
     DOCKER_HOST: tcp://docker:2375/
     DOCKER_DRIVER: overlay2
 
- services:
-   - docker:dind
+  services:
+    - docker:dind
 
   stage: build
   tags: