diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 555aacdaa80669253722be850fe36073f7acbb1c..7f0f2e6aa21a06c31a7d2fedab443998a9d09009 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,6 +11,9 @@ stages:
 
 pages:
   stage: deploy-pages
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "master"'
+      when: always
   script:
     - cd doc
     - make html