diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 33312d11be1f95bb9b968e688b60133ad83921b8..bd53ceaff3e8ca1dfe1b4a96f486638cbc1c2f63 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -81,6 +81,8 @@ test:
   tags: [docker]
   stage: test
   image: $CI_REGISTRY_IMAGE_BASE
+  variables:
+    DOCKER_HOST: tcp://docker:2375
   script:
       - if [[ "$CAOSDB_TAG" == "" ]]; then
             CAOSDB_TAG=dev-latest;