diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9fa453d7c808495d6131f07a0cde1a3e57c2efe7..5a3aa8a420f65fb0db077cf12c97f120c38b5beb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -17,7 +17,7 @@ docker-build:
   services:
     - docker:dind
   before_script:
-    docker login registry.bht-berlin.de -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD
+    docker login registry.bht-berlin.de:443 -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD
     #- docker login registry.bht-berlin.de:443 -u "s78371" -p "jpn2tz9WYxuG_kJdZjy5"
   # Default branch leaves tag empty (= latest tag)
   # All other branches are tagged with the escaped branch name (commit ref slug)