diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 97e4d49..21dbccb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,6 +8,7 @@ variables:
   WEBSEED: http://labsync.lab.fablab-nea.de/labsync/$CI_COMMIT_REF_NAME/$CI_PIPELINE_ID/images
   DOCKER_IMAGE_BUILDER: ${CI_REGISTRY_IMAGE}/labsync-builder:$CI_COMMIT_REF_SLUG
   DOCKER_IMAGE_SECURITY_SCANNER: ${CI_REGISTRY_IMAGE}/security-scanner:$CI_COMMIT_REF_SLUG
+  DOCKER_TLS_CERTDIR: ""
 
 stages:
  - prepare