diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 589aada508d06ba7428e17a6fc07eeaca8ef8aac..1102c9a3cc955ddb94d4a5c1f438db42d440b390 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,14 +33,13 @@ setup:
   stage: deploy
   tags:
     - docker
+  before_script:
+    - echo $CI_ENVIRONMENT_URL
+    - echo $ROOT_RELATIVE_NAMESPACE
+    - test "$ROOT_RELATIVE_NAMESPACE" == "${CI_PROJECT_NAMESPACE#$CI_PROJECT_ROOT_NAMESPACE}" || { echo "ROOT_RELATIVE_NAMESPACE is not set correctly" ; exit 1 ; }
   script:
     - sed -i "s/%%BRANCH%%/$CI_COMMIT_BRANCH/g" src/index.html
     - mv src public
-    - echo $SHELL
-    - echo $PROJECT_SUB_NAMESPACE
-    - echo $ROOT_RELATIVE_NAMESPACE
-    - echo $CI_ENVIRONMENT_URL
-    - printenv
   artifacts:
     paths:
       - public/