diff --git a/tasks/setup-RedHat.yml b/tasks/setup-RedHat.yml
index 8a790f6..f561ee9 100644
--- a/tasks/setup-RedHat.yml
+++ b/tasks/setup-RedHat.yml
@@ -1,5 +1,6 @@
 ---
-- name: Ensure old versions of Docker are not installed.
+- # See https://docs.docker.com/engine/install/rhel/#uninstall-old-versions
+  name: Ensure old versions of Docker are not installed.
   package:
     name: "{{ docker_obsolete_packages }}"
     state: absent