diff --git a/steward/audit/service.py b/steward/audit/service.py
index 68932af..59b8511 100644
--- a/steward/audit/service.py
+++ b/steward/audit/service.py
@@ -155,6 +155,7 @@ ACTIONS = {
     "host_agent.maintenance_plan_toggled": "paused or resumed maintenance plan",
     "host_agent.maintenance_plan_deleted": "deleted maintenance plan",
     "host_agent.maintenance_plan_run": "ran maintenance plan now",
+    "host_agent.maintenance_plan_spread": "changed how maintenance plan spreads swarm services",
     "host.deleted": "deleted host",
     "monitor.created": "added monitor",
     "monitor.updated": "changed monitor",