diff --git a/vars/default_vars.yml b/vars/default_vars.yml
index 3a66c47d4..230a3a449 100644
--- a/vars/default_vars.yml
+++ b/vars/default_vars.yml
@@ -460,7 +460,7 @@ moodle_enabled: False
 # 'mongodb_install: True' for 'mongodb_installed is defined' tests e.g. in
 # 0-init/tasks/validate_vars.yml
 mongodb_install: True
-# FYI 'mongodb_enabled: False' works but is ineffective.  Required by
+# FYI 'mongodb_enabled: False' works when Sugarizer is disabled.  Required by
 # mongodb/tasks/enable.yml to shut down the service and log status, but that is
 # misleading as Sugarizer starts mongodb's systemd service on its own, due to
 # 'Requires=mongodb.service' within /etc/systemd/system/sugarizer.service