diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a9b82943a1b0cd6e6a52279576577b685bd1ff07..a4b832959e3ff31fb8af49fab1dbaa4db56a96f0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,6 +9,7 @@ variables:
   production_repo: ubleipzig/folio-okapi
   staging_repo: services.ub.uni-leipzig.de:11443/bdd_dev/folio/okapi
   alpha_repo: services.ub.uni-leipzig.de:11443/bdd_dev/folio/okapi
+  DOCKER_TLS_CERTDIR: ""
 
 docker_build:
   stage: build