diff --git a/debian-buster-jenkins/Dockerfile b/debian-buster-jenkins/Dockerfile
index f20e1a86..6dffc250 100644
--- a/debian-buster-jenkins/Dockerfile
+++ b/debian-buster-jenkins/Dockerfile
@@ -1,4 +1,4 @@
-# Image used to run contrib/jenkins.sh scripts of most Osmocom projects.
+# osmo-gsm-tester is still using this (OS#6126).
 # See master-builds.yml, gerrit-verifications.yml in osmo-ci.git.
 
 ARG	DEBIAN_VERSION=buster