diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 210734b..bd30f79 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -93,8 +93,6 @@ gitea-arm64-trigger:
 .test-install: &test-install
   stage: test
   image: ubuntu:noble
-  variables:
-    DOCKER_TLS_CERTDIR: ""
   script:
     - ./.gitlab-ci/test-install.sh