diff --git a/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py b/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py
index 81a1ca3b0d1..1a5e0f83e75 100644
--- a/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py
+++ b/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py
@@ -327,7 +327,7 @@ class ChassisAgentDeleteEvent(ChassisAgentEvent):
             return False
 
     def run(self, event, row, old):
-        n_agent.AgentCache().delete([row.external_ids['delete_agent']])
+        n_agent.AgentCache().delete(row.external_ids['delete_agent'])
 
 
 class ChassisAgentWriteEvent(ChassisAgentEvent):