diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 379fb16f..8a0bf9b6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -83,3 +83,15 @@ tests:jessie:
     - cd -
     - rm -f .phplint-cache
     - /tmp/vendor/bin/phplint src
+
+tests:doc:
+  image: registry.gitlab.com/pipeline-components/xmllint:latest
+  stage: tests
+  rules:
+    - changes:
+      - doc/*.docbook
+      - doc/*.xml
+      - doc/**/*.docbook
+      - doc/**/*.xml
+  script:
+    - xmllint --valid --noout doc/LdapSaisie.docbook