diff --git a/.docker/tester.yml b/.docker/tester.yml
index 75f86048ea9a140527b83276bbd1bf33dfe0b2c3..1cc92ea185b572b5811d834667f6f321e8bb4532 100644
--- a/.docker/tester.yml
+++ b/.docker/tester.yml
@@ -4,7 +4,7 @@ services:
     image: "$CI_REGISTRY_IMAGE:latest"
     volumes:
       - type: bind
-        source: .docker/cert
+        source: ./cert
         target: /opt/caosdb/cert
     networks:
       - docker_caosnet