diff --git a/plugins/events-backend/src/service/hub/DatabaseEventBusStore.test.ts b/plugins/events-backend/src/service/hub/DatabaseEventBusStore.test.ts
index c962fe75a0..3c8d2cb377 100644
--- a/plugins/events-backend/src/service/hub/DatabaseEventBusStore.test.ts
+++ b/plugins/events-backend/src/service/hub/DatabaseEventBusStore.test.ts
@@ -35,7 +35,7 @@ describe('DatabaseEventBusStore', () => {
 
       for (let i = 0; i < 10; ++i) {
         await store.publish({
-          params: { topic: 'test', eventPayload: { n: i } },
+          event: { topic: 'test', eventPayload: { n: i } },
         });
       }
 
@@ -75,7 +75,7 @@ describe('DatabaseEventBusStore', () => {
 
       for (let i = 0; i < 10; ++i) {
         await store.publish({
-          params: { topic: 'test', eventPayload: { n: i } },
+          event: { topic: 'test', eventPayload: { n: i } },
         });
       }
 
@@ -114,7 +114,7 @@ describe('DatabaseEventBusStore', () => {
 
       for (let i = 0; i < 10; ++i) {
         await store.publish({
-          params: { topic: 'test', eventPayload: { n: i } },
+          event: { topic: 'test', eventPayload: { n: i } },
         });
       }
 
diff --git a/plugins/events-backend/src/service/hub/DatabaseEventBusStore.ts b/plugins/events-backend/src/service/hub/DatabaseEventBusStore.ts
index a41e95733d..c94fa2aa2c 100644
--- a/plugins/events-backend/src/service/hub/DatabaseEventBusStore.ts
+++ b/plugins/events-backend/src/service/hub/DatabaseEventBusStore.ts
@@ -348,10 +348,10 @@ export class DatabaseEventBusStore implements EventBusStore {
   }
 
   async publish(options: {
-    params: EventParams;
+    event: EventParams;
     notifiedSubscribers?: string[];
   }): Promise<{ eventId: string } | undefined> {
-    const topic = options.params.topic;
+    const topic = options.event.topic;
     const notifiedSubscribers = options.notifiedSubscribers ?? [];
     // This query inserts a new event into the database, but only if there are
     // subscribers to the topic that have not already been notified
@@ -374,8 +374,8 @@ export class DatabaseEventBusStore implements EventBusStore {
               this.#db.raw('?', [topic]),
               this.#db.raw('?', [
                 JSON.stringify({
-                  payload: options.params.eventPayload,
-                  metadata: options.params.metadata,
+                  payload: options.event.eventPayload,
+                  metadata: options.event.metadata,
                 }),
               ]),
               this.#db.raw('?', [notifiedSubscribers]),
diff --git a/plugins/events-backend/src/service/hub/MemoryEventBusStore.ts b/plugins/events-backend/src/service/hub/MemoryEventBusStore.ts
index 6c7b4e6df7..2e4dba34bd 100644
--- a/plugins/events-backend/src/service/hub/MemoryEventBusStore.ts
+++ b/plugins/events-backend/src/service/hub/MemoryEventBusStore.ts
@@ -33,10 +33,10 @@ export class MemoryEventBusStore implements EventBusStore {
   }>();
 
   async publish(options: {
-    params: EventParams;
+    event: EventParams;
     notifiedSubscribers: string[];
   }): Promise<{ eventId: string } | undefined> {
-    const topic = options.params.topic;
+    const topic = options.event.topic;
     const notifiedSubscribers = new Set(options.notifiedSubscribers);
 
     let hasOtherSubscribers = false;
@@ -51,7 +51,7 @@ export class MemoryEventBusStore implements EventBusStore {
     }
 
     const nextSeq = this.#getMaxSeq() + 1;
-    this.#events.push({ ...options.params, notifiedSubscribers, seq: nextSeq });
+    this.#events.push({ ...options.event, notifiedSubscribers, seq: nextSeq });
 
     for (const listener of this.#listeners) {
       if (listener.topics.has(topic)) {
diff --git a/plugins/events-backend/src/service/hub/createEventBusRouter.ts b/plugins/events-backend/src/service/hub/createEventBusRouter.ts
index 193c1108d5..b1e99596b1 100644
--- a/plugins/events-backend/src/service/hub/createEventBusRouter.ts
+++ b/plugins/events-backend/src/service/hub/createEventBusRouter.ts
@@ -160,7 +160,7 @@ export async function createEventBusRouter(options: {
     const topic = req.body.event.topic;
     const notifiedSubscribers = req.body.notifiedSubscribers;
     const result = await store.publish({
-      params: {
+      event: {
         topic,
         eventPayload: req.body.event.payload,
       } as EventParams,
diff --git a/plugins/events-backend/src/service/hub/types.ts b/plugins/events-backend/src/service/hub/types.ts
index 3a4c8df9f8..0d363bec8b 100644
--- a/plugins/events-backend/src/service/hub/types.ts
+++ b/plugins/events-backend/src/service/hub/types.ts
@@ -18,7 +18,7 @@ import { EventParams } from '@backstage/plugin-events-node';
 
 export type EventBusStore = {
   publish(options: {
-    params: EventParams;
+    event: EventParams;
     notifiedSubscribers?: string[];
   }): Promise<{ eventId: string } | undefined>;