diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2eb710e7e..494d59969 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,8 @@
 # SPDX-FileCopyrightText: None
 # SPDX-License-Identifier: CC0-1.0
 
+# Include scripts from https://invent.kde.org/sysadmin/ci-utilities
+# which run on Docker images from https://invent.kde.org/sysadmin/ci-images
 include:
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/linux.yml
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/freebsd.yml