diff --git a/packages/backend/src/core/entities/ChannelEntityService.ts b/packages/backend/src/core/entities/ChannelEntityService.ts
index 9ee918bea3..e26cddd281 100644
--- a/packages/backend/src/core/entities/ChannelEntityService.ts
+++ b/packages/backend/src/core/entities/ChannelEntityService.ts
@@ -111,6 +111,7 @@ export class ChannelEntityService {
 			description: channel.description,
 			userId: channel.userId,
 			bannerUrl: bannerFile ? this.driveFileEntityService.getPublicUrl(bannerFile) : null,
+			bannerId: channel.bannerId,
 			pinnedNoteIds: channel.pinnedNoteIds,
 			color: channel.color,
 			isArchived: channel.isArchived,
diff --git a/packages/backend/src/models/json-schema/channel.ts b/packages/backend/src/models/json-schema/channel.ts
index a7966ffdb3..e7613290d1 100644
--- a/packages/backend/src/models/json-schema/channel.ts
+++ b/packages/backend/src/models/json-schema/channel.ts
@@ -40,6 +40,11 @@ export const packedChannelSchema = {
 			format: 'url',
 			nullable: true, optional: false,
 		},
+		bannerId: {
+			type: 'string',
+			nullable: true, optional: false,
+			format: 'id',
+		},
 		pinnedNoteIds: {
 			type: 'array',
 			nullable: false, optional: false,
diff --git a/packages/frontend/.storybook/fakes.ts b/packages/frontend/.storybook/fakes.ts
index ed29c63471..723255267b 100644
--- a/packages/frontend/.storybook/fakes.ts
+++ b/packages/frontend/.storybook/fakes.ts
@@ -33,6 +33,7 @@ export function channel(id = 'somechannelid', name = 'Some Channel', bannerUrl:
 		description: null,
 		userId: null,
 		bannerUrl,
+		bannerId: null,
 		pinnedNoteIds: [],
 		color: '#000',
 		isArchived: false,
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index f67ad76fc9..c7c364e66b 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -4948,6 +4948,8 @@ export type components = {
             userId: string | null;
             /** Format: url */
             bannerUrl: string | null;
+            /** Format: id */
+            bannerId: string | null;
             pinnedNoteIds: string[];
             color: string;
             isArchived: boolean;