diff --git a/migrations/0034_workflow_agent_deliveries.sql b/migrations/0034_workflow_agent_deliveries.sql
index 8f4af381dc..6de4ea6833 100644
--- a/migrations/0034_workflow_agent_deliveries.sql
+++ b/migrations/0034_workflow_agent_deliveries.sql
@@ -41,3 +41,5 @@ CREATE INDEX idx_workflow_agent_deliveries_pending
     WHERE status IN ('pending', 'claimed');
 CREATE INDEX idx_workflow_agent_deliveries_run
     ON workflow_agent_deliveries (community_id, run_id, step_id);
+
+SELECT attach_community_write_fence('workflow_agent_deliveries');