diff --git a/roles/mongodb/tasks/install.yml b/roles/mongodb/tasks/install.yml
index 6b4eb0deb..c87cf49fa 100644
--- a/roles/mongodb/tasks/install.yml
+++ b/roles/mongodb/tasks/install.yml
@@ -131,6 +131,9 @@
 
 # 3. ENABLE/DISABLE
 
+# 2019-07-08: mongodb_install is completely ignored.  FYI mongodb_enabled: False
+# works but is ineffective, as Sugarizer starts mongodb's systemd svc on its own
+
 - name: Enable & Restart 'mongodb' systemd service if mongodb_enabled, incl daemon-reload (in case mongodb.service changed?)
   systemd:
     name: mongodb