diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5631f1e948c83a37d373e7ce4c5ac09b16e2e5c2..627dcc97dbf8af9c389816b61388ea840e3a0128 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -129,7 +129,7 @@ ubuntu:i686:
     - pip3 install sphinx sphinxcontrib-bibtex
     - pip3 install -e . --no-deps
   script:
-    - python3 setup.py build_sphinx
+    - sphinx-build -b html doc doc/build
     - cp -r build/sphinx/html public
   artifacts:
     paths: