diff --git a/plugin-server/src/worker/ingestion/hooks.ts b/plugin-server/src/worker/ingestion/hooks.ts
index 78ac02daa7fcc..2cc8279c88d52 100644
--- a/plugin-server/src/worker/ingestion/hooks.ts
+++ b/plugin-server/src/worker/ingestion/hooks.ts
@@ -266,13 +266,13 @@ export class HookCommander {
         postgres: PostgresRouter,
         teamManager: TeamManager,
         organizationManager: OrganizationManager,
-        fetchHostnameGuardTeams: Set<number>,
+        fetchHostnameGuardTeams?: Set<number>,
         statsd?: StatsD
     ) {
         this.postgres = postgres
         this.teamManager = teamManager
         this.organizationManager = organizationManager
-        this.fetchHostnameGuardTeams = fetchHostnameGuardTeams
+        this.fetchHostnameGuardTeams = fetchHostnameGuardTeams || new Set()
         if (process.env.SITE_URL) {
             this.siteUrl = process.env.SITE_URL
         } else {
diff --git a/plugin-server/tests/main/ingestion-queues/each-batch.test.ts b/plugin-server/tests/main/ingestion-queues/each-batch.test.ts
index f0b4273bdb216..55dcb1e2f3d23 100644
--- a/plugin-server/tests/main/ingestion-queues/each-batch.test.ts
+++ b/plugin-server/tests/main/ingestion-queues/each-batch.test.ts
@@ -202,8 +202,7 @@ describe('eachBatchX', () => {
             const hookCannon = new HookCommander(
                 queue.pluginsServer.postgres,
                 queue.pluginsServer.teamManager,
-                queue.pluginsServer.organizationManager,
-                new Set()
+                queue.pluginsServer.organizationManager
             )
             const matchSpy = jest.spyOn(actionMatcher, 'match')
             // mock hasWebhooks to return true
diff --git a/plugin-server/tests/worker/ingestion/event-pipeline/event-pipeline-integration.test.ts b/plugin-server/tests/worker/ingestion/event-pipeline/event-pipeline-integration.test.ts
index 4b1a04a0ba4d9..ac456a076276a 100644
--- a/plugin-server/tests/worker/ingestion/event-pipeline/event-pipeline-integration.test.ts
+++ b/plugin-server/tests/worker/ingestion/event-pipeline/event-pipeline-integration.test.ts
@@ -45,7 +45,7 @@ describe('Event Pipeline integration test', () => {
         actionManager = new ActionManager(hub.db.postgres)
         await actionManager.prepare()
         actionMatcher = new ActionMatcher(hub.db.postgres, actionManager)
-        hookCannon = new HookCommander(hub.db.postgres, hub.teamManager, hub.organizationManager, new Set())
+        hookCannon = new HookCommander(hub.db.postgres, hub.teamManager, hub.organizationManager)
 
         jest.spyOn(hub.db, 'fetchPerson')
         jest.spyOn(hub.db, 'createPerson')