diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 652004b810b62e489d85616db93bcebe1fd98072..3e640aef01beba3205e3d4f5e53b9b1c59a9f331 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,9 @@ variables:
   # Commit of ghc/ci-images repository from which to pull Docker images
   DOCKER_REV: e517150438cd9df9564fb91adc4b42e2667b2bc1
 
-hello:
+build-pdf:
+  # use linters image, as it's likely lower power
   image: "registry.gitlab.haskell.org/ghc/ci-images/linters:$DOCKER_REV"
+  
   script:
-    - echo "Hello, world!"
+    - opam install ott