diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4cc1f06f36d84e1a5ea8dc26859f676a11222716..a69f70bc25d14ff0484e3d151a5acebd157f403e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -29,9 +29,11 @@ review:
   extends: .deploy
   rules:
     - if: $CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH
+  variables:
+    ROOT_RELATIVE_NAMESPACE: "${CI_PROJECT_NAMESPACE#$CI_PROJECT_ROOT_NAMESPACE}"
   environment:
     name: "review $CI_COMMIT_BRANCH"
-    url: "https://${CI_PROJECT_ROOT_NAMESPACE}.${CI_PAGES_DOMAIN}/-${CI_PROJECT_NAMESPACE#$CI_PROJECT_ROOT_NAMESPACE}/${CI_PROJECT_NAME}/-/jobs/$CI_JOB_ID/artifacts/public/index.html"
+    url: "https://${CI_PROJECT_ROOT_NAMESPACE}.${CI_PAGES_DOMAIN}/-${ROOT_RELATIVE_NAMESPACE}/${CI_PROJECT_NAME}/-/jobs/$CI_JOB_ID/artifacts/public/index.html"
 
 # Deploy to GitLab Pages for pushes on the default branch
 pages: