diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 447f60c84d6bd2ed0a6319debaf9a5201f2fa868..7cedae00d3c1d22d97e282cddb7e34585c7c8db5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,6 +11,7 @@ pdf:
     only:
         - branches
     when: manual
+    retry: 2
     tags:
         - development
     script:
@@ -29,7 +30,6 @@ review:start:
         - sudo docker run --detach --rm --env VIRTUAL_HOST=${CI_ENVIRONMENT_SLUG} --name ${DOCKER_CONTAINER_NAME} ${REVIEW_IMAGE}:development || true
         - sudo docker cp . ${DOCKER_CONTAINER_NAME}:/opt/app
         - sudo docker exec ${DOCKER_CONTAINER_NAME} gitbook install
-    #when: manual
     environment:
         name: review/${CI_COMMIT_REF_NAME}
         url: http://${CI_ENVIRONMENT_SLUG}.collaborating.tuhh.de